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Large Oval Cut Malachite Signet Ring 20 Grams 1.50 Carats 18 Karat Yellow Gold
Large Oval Cut Malachite Signet Ring 20 Grams 1.50 Carats 18 Karat Yellow Gold

Large Oval Cut Malachite Signet Ring 20 Grams 1.50 Carats 18 Karat Yellow Gold

By Harbor Diamonds

Located in New York, NY

18 Karat yellow gold signet style ring featuring a Oval Cut Malachite flanked with round brilliants weighing approximately 1.50 carats. Ring measures 10.5 mm x 21.7 mm More Malachit...

Category

Early 2000s Contemporary Signet Rings

Materials

Malachite, 18k Gold, Yellow Gold

.20 Carat Ruby Diamond Yellow Gold Horseshoe Brooch
.20 Carat Ruby Diamond Yellow Gold Horseshoe Brooch

.20 Carat Ruby Diamond Yellow Gold Horseshoe Brooch

Located in Stamford, CT

Early 1900's horseshoe brooch set with 15 square cut rubies and 12 rose cut diamonds. Fold up safety catch. 15 square cut red rubies, approx. .20cts 12 rose cut diamonds, H-I SI a...

Category

Early 20th Century Brooches

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

20 Carat Round Brilliant Cut Diamond Cuban Link Chain Necklace
20 Carat Round Brilliant Cut Diamond Cuban Link Chain Necklace

20 Carat Round Brilliant Cut Diamond Cuban Link Chain Necklace

Located in Chicago, IL

Exuding unparalleled luxury and weight, this extraordinary 20 Carat Round Brilliant Cut Diamond Cuban link chain necklace is a masterclass in statement jewelry.

Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 10k Gold, Yellow Gold, Gold

Art Deco Diamond Engagement Ring Mined .30ct Original 1940's 14K Yellow Gold
Art Deco Diamond Engagement Ring Mined .30ct Original 1940's 14K Yellow Gold

Art Deco Diamond Engagement Ring Mined .30ct Original 1940's 14K Yellow Gold

Located in Dearborn, MI

Genuine Original Art Deco Antique from the 1940's Diamond Engagement Ring .30ct 14K Yellow & White Gold Genuine Natural Mined .20ct F VVS Round Brilliant Cut Diamond Center ...

Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

.20 Carat Total Weight Diamond Wedding Band Ring
.20 Carat Total Weight Diamond Wedding Band Ring

.20 Carat Total Weight Diamond Wedding Band Ring

Located in Hicksville, NY

Ring Size: 7 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2 grams Diamond Details: Weight: .20 carat, total weight Cut: Antique Single Cut Color: F Clarity: VS1 Finger t...

Category

Vintage 1920s Unknown Art Deco Band Rings

Materials

White Diamond, Platinum

.20 Carat Total Weight Diamond Platinum Wedding Band
.20 Carat Total Weight Diamond Platinum Wedding Band

.20 Carat Total Weight Diamond Platinum Wedding Band

Located in Hicksville, NY

Ring Size: 7.25 Metal Type: Platinum Weight: 2.4 grams Side Stone Details: Shape: Antique Single Cut Total Carat Weight: .20 carat, total weight Color: E Clarity: VS Finger to ...

Category

Vintage 1910s Unknown Art Deco Band Rings

Materials

White Diamond, Platinum

.20 Carat Total Weight Platinum Diamond Wedding Band
.20 Carat Total Weight Platinum Diamond Wedding Band

.20 Carat Total Weight Platinum Diamond Wedding Band

Located in Hicksville, NY

Item Details: Ring Size: 8.95 Metal Type: Platinum Weight: 2.1 grams Stone Details: Shape: Antique Single Cut Total Carat Weight: .20 Carat Total Weight Color: F Clarity: VS Eng...

Category

Vintage 1930s Unknown Art Deco Wedding Rings

Materials

White Diamond, Platinum

14K Yellow Gold 1/20 Carat Dual Heart Diamond Ring
14K Yellow Gold 1/20 Carat Dual Heart Diamond Ring

14K Yellow Gold 1/20 Carat Dual Heart Diamond Ring

Located in New York, NY

Present this delicate and lovely Dual Heart Diamond Ring as a striking symbol of your undying love. This captivating ring showcases 2 gorgeous round cut accented diamonds, beautifull...

Category

21st Century and Contemporary Indian Contemporary Cocktail Rings

Materials

White Diamond, Diamond, Yellow Gold, 14k Gold

GIA Certified 20 Carat Fancy Yellow Diamond Pendant in 18K Gold
GIA Certified 20 Carat Fancy Yellow Diamond Pendant in 18K Gold

GIA Certified 20 Carat Fancy Yellow Diamond Pendant in 18K Gold

By Antinori Fine Jewels

Located in Chicago, IL

A celebration of brilliance, rarity, and emotion—crafted for the one who desires a jewel as unforgettable as the moments it symbolizes. Carat Weight: 20.02 carats Shape: Heart Modi...

Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

.925 Sterling Silver 1/20 Carat Round Cut Diamond Drop Earrings
.925 Sterling Silver 1/20 Carat Round Cut Diamond Drop Earrings

.925 Sterling Silver 1/20 Carat Round Cut Diamond Drop Earrings

Located in New York, NY

Upgrade your party look with these gorgeous dangle earrings. Polished high to shine, the earrings are composed of sterling silver. Designed in a unique shape, the earrings are embell...

Category

21st Century and Contemporary Indian Contemporary Drop Earrings

Materials

Diamond, White Diamond, Sterling Silver

15.50 Carat Natural Diamond Tennis Necklace in 14K Yellow Gold 20"
15.50 Carat Natural Diamond Tennis Necklace in 14K Yellow Gold 20"

15.50 Carat Natural Diamond Tennis Necklace in 14K Yellow Gold 20"

Located in Great Neck Plaza, NY

Beautiful quality tennis necklace, round-brilliant cut white diamonds clean and Excellent shine. 14k Solid yellow gold classic four-prong style for maximum light brilliance. 20 in...

Category

2010s American Modern Chain Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

PANIM 20 Carat Pave Set Diamond 18k White Gold Cuban Necklace
PANIM 20 Carat Pave Set Diamond 18k White Gold Cuban Necklace

PANIM 20 Carat Pave Set Diamond 18k White Gold Cuban Necklace

By PANIM

Located in Tsim Sha Tsui, Hong Kong

PANIM 20 Carat Pave set Diamond 18K White Gold Cuban Necklace Wearing a diamond Cuban chain is a great way to elevate your style and make a statement.

Category

21st Century and Contemporary Indian Modern Chain Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring
20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring

20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring

Located in Miami, FL

A rare and striking investment grade 20.07 carat "Royal Blue" No Heat Burma Sapphire takes center stage in this elegant 18K white gold ring, flanked by 2 half moon cut diamond and ac...

Category

21st Century and Contemporary Asian Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, White Gold

20 Carat Rubellite and Diamond Dome Ring
20 Carat Rubellite and Diamond Dome Ring

20 Carat Rubellite and Diamond Dome Ring

Located in Carmel-by-the-Sea, CA

The ring boasts playfulness and mid-century-inspired character in addition to its 20 carats of tourmaline and .70 carats of diamonds.

Category

21st Century and Contemporary Cluster Rings

Materials

Rubelite, Tourmaline, 18k Gold, Rose Gold

.20 Carat Total Weight Diamond Platinum Wedding Band
.20 Carat Total Weight Diamond Platinum Wedding Band

.20 Carat Total Weight Diamond Platinum Wedding Band

Located in Hicksville, NY

Ring Size: 5.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.0 grams Diamond Details: Weight: .20ct, total weight Cut: Old European brilliant Color:G-H Clarity: VS Finger...

Category

Vintage 1920s Unknown Art Deco Band Rings

Materials

Diamond, Platinum

Mauboussin Paris 20 Carat Amethyst and Diamond Ring
Mauboussin Paris 20 Carat Amethyst and Diamond Ring

Mauboussin Paris 20 Carat Amethyst and Diamond Ring

By Mauboussin

Located in Bay Harbor Islands, FL

At its center is a spectacular 20-carat amethyst, cut in a large, elongated faceted shape that showcases deep violet and plum hues with flashes of lighter lavender as it catches the ...

Category

Late 20th Century French Modern Cocktail Rings

Materials

Amethyst, Diamond, 18k Gold, Yellow Gold

18k Gold 20 Carat Brown Diamonds Beads White Diamonds Brilliant Cut Necklaces
18k Gold 20 Carat Brown Diamonds Beads White Diamonds Brilliant Cut Necklaces

18k Gold 20 Carat Brown Diamonds Beads White Diamonds Brilliant Cut Necklaces

By Rossella Ugolini

Located in Rome, IT

20 Inches length, (50 cm) 20 Carats Brown Diamonds beads and 0.22 Carats White Diamonds Brilliant cut clasp, 18k Yellow and White Gold beaded necklace.

Category

2010s Italian Modern Beaded Necklaces

Materials

Diamond, Brown Diamond, White Diamond, 18k Gold, Gold, White Gold, Yello...

GIA Certified 20 Carat Type 2A FLAWLESS Clarity D Color Diamond Ring
GIA Certified 20 Carat Type 2A FLAWLESS Clarity D Color Diamond Ring

GIA Certified 20 Carat Type 2A FLAWLESS Clarity D Color Diamond Ring

Located in Chicago, IL

GIA Certified 20 Carat Type 2A Diamond Ring, boasting FLAWLESS clarity and a pristine D color rating.

Category

2010s American Engagement Rings

Materials

Diamond, Platinum

18 Karat White Gold Aster Floral Diamond Ring '1/20 Carat'
18 Karat White Gold Aster Floral Diamond Ring '1/20 Carat'

18 Karat White Gold Aster Floral Diamond Ring '1/20 Carat'

Located in San Francisco, CA

This ring features six round brilliante diamonds sprong set into leaves that wrap around the finger. Experience the difference! Product details: Center Gemstone Color: WHITE Side ...

Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

14 Karat White Gold Aster Floral Diamond Ring '1/20 Carat'
14 Karat White Gold Aster Floral Diamond Ring '1/20 Carat'

14 Karat White Gold Aster Floral Diamond Ring '1/20 Carat'

Located in San Francisco, CA

This ring features six round brilliant diamonds prong set into leaves that wrap around the finger. Experience the difference! Product details: Center Gemstone Color: WHITE Side Ge...

Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

14 Karat Yellow Gold Aster Floral Diamond Ring '1/20 Carat'
14 Karat Yellow Gold Aster Floral Diamond Ring '1/20 Carat'

14 Karat Yellow Gold Aster Floral Diamond Ring '1/20 Carat'

Located in San Francisco, CA

This ring features six round brilliant diamonds prong set into leaves that wrap around the finger. Experience the difference! Product details: Center Gemstone Color: WHITE Side Ge...

Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

18 Karat Rose Gold Aster Floral Diamond Ring '1/20 Carat'
18 Karat Rose Gold Aster Floral Diamond Ring '1/20 Carat'

18 Karat Rose Gold Aster Floral Diamond Ring '1/20 Carat'

Located in San Francisco, CA

This ring features six round brilliant diamonds prong set into leaves that wrap around the finger. Experience the difference! Product details: Center Gemstone Color: WHITE Side Ge...

Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18 Karat Yellow Gold Aster Floral Diamond Ring '1/20 Carat'
18 Karat Yellow Gold Aster Floral Diamond Ring '1/20 Carat'

18 Karat Yellow Gold Aster Floral Diamond Ring '1/20 Carat'

Located in San Francisco, CA

This ring features six round brilliante diamonds sprong set into leaves that wrap around the finger. Experience the difference! Product details: Center Gemstone Color: WHITE Side ...

Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14 Karat Rose Gold Aster Floral Diamond Ring '1/20 Carat'
14 Karat Rose Gold Aster Floral Diamond Ring '1/20 Carat'

14 Karat Rose Gold Aster Floral Diamond Ring '1/20 Carat'

Located in San Francisco, CA

This ring features six round brilliant diamonds prong set into leaves that wrap around the finger. Experience the difference! Product details: Center Gemstone Color: WHITE Side Ge...

Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

Stunning diamond necklace over 20 carats in 18KT gold
Stunning diamond necklace over 20 carats in 18KT gold

Stunning diamond necklace over 20 carats in 18KT gold

Located in Boca Raton, FL

Stunning diamond necklace, bow design in 14KT white gold, made from scratch, pendant is detachable and can be worn by itself as a pendant. Metal Type: 18KT Center diamond is 4 carat...

Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Gold, 18k Gold

GIA Certified 20 Carat Emerald Cut Diamond Engagement Ring
GIA Certified 20 Carat Emerald Cut Diamond Engagement Ring

GIA Certified 20 Carat Emerald Cut Diamond Engagement Ring

By GEMME

Located in New York, NY

Wow! The Ultimate Emerald Cut Diamond Ring. GIA Certified as J color VS clarity. Set with shield cut side stones

Category

2010s Three-Stone Rings

Materials

Diamond, Platinum

Certified Significant Diamond Cluster Earrings 20 Carats D Colour
Certified Significant Diamond Cluster Earrings 20 Carats D Colour

Certified Significant Diamond Cluster Earrings 20 Carats D Colour

Located in Mayfair, London, London

A pair of decadent diamond cluster earrings in platinum. Each earring is composed of a cluster design encompassing a mixture of round brilliant cut, pear cut and marquise cut diamond...

Category

21st Century and Contemporary Chandelier Earrings

Materials

Diamond, Platinum

Edwardian Era 20 Carat Old Euro Cut Diamond Bracelet in Platinum Setting
Edwardian Era 20 Carat Old Euro Cut Diamond Bracelet in Platinum Setting

Edwardian Era 20 Carat Old Euro Cut Diamond Bracelet in Platinum Setting

Located in Miami, FL

A true investment piece of heirloom quality. Diamond Details: - Stone Count: 115 - Carat: 20 (approx.) - Color: F-G - Clarity: SI2 - Cut: Old European - Sizes: 2 diamonds - 0.70CT e...

Category

Early 20th Century Edwardian Link Bracelets

Materials

Diamond, Platinum

Art Deco Platinum 20 Carat 1930's Diamond Bracelet
Art Deco Platinum 20 Carat 1930's Diamond Bracelet

Art Deco Platinum 20 Carat 1930's Diamond Bracelet

Located in New York, NY

This is a very special bracelet from the Art Deco era, crafted circa 1930's in platinum with diamonds. Mounted with over 400 diamonds of old cut round shapes and a few baguettes. Lo...

Category

20th Century Unknown Art Deco Bangles

Materials

Diamond, Platinum

1.50 Carat Diamond Bezel Necklace G SI 14 Karat White Gold 20 Pointers
1.50 Carat Diamond Bezel Necklace G SI 14 Karat White Gold 20 Pointers

1.50 Carat Diamond Bezel Necklace G SI 14 Karat White Gold 20 Pointers

By Morris & David

Located in New York, NY

1.50 Carat Diamond Bezel Necklace G SI 14K White Gold 20 pointers 18 inch 100% Natural Diamonds, Not Enhanced in any way Round Cut Diamond Bezel Necklace 1.50CT G-H SI 14K White Gol...

Category

21st Century and Contemporary American Contemporary Link Necklaces

Materials

Diamond, 14k Gold, White Gold

9.60 Carat Diamond Bezel Necklace G SI 14 Karat White Gold 20 Pointers
9.60 Carat Diamond Bezel Necklace G SI 14 Karat White Gold 20 Pointers

9.60 Carat Diamond Bezel Necklace G SI 14 Karat White Gold 20 Pointers

By Morris & David

Located in New York, NY

9.60 Carat Diamond Bezel Necklace G SI 14K White Gold 18 inches 100% Natural Diamonds, Not Enhanced in any way Round Cut Diamond Bezel Necklace 9.60CT G-H SI 14K White Gold, Be...

Category

21st Century and Contemporary American Contemporary Link Necklaces

Materials

Diamond, 14k Gold, White Gold

.20 Carat Natural Round Diamonds Oval Striped Earrings 14 Karat*
.20 Carat Natural Round Diamonds Oval Striped Earrings 14 Karat*

.20 Carat Natural Round Diamonds Oval Striped Earrings 14 Karat*

Located in New York, NY

Oval Striped .20ct. Natural diamonds Rounds, Full cut brilliants. H- color Vs-2 Clarity. Excellent detail. 14kt. yellow gold 3.7 grams. .65 inch long .41 inch long

Category

2010s American Stud Earrings

Materials

Diamond, 14k Gold, Yellow Gold

10K Two Tone Gold 1/20 Carat Round Cut Diamond Spiral Earring
10K Two Tone Gold 1/20 Carat Round Cut Diamond Spiral Earring

10K Two Tone Gold 1/20 Carat Round Cut Diamond Spiral Earring

Located in New York, NY

Each earring piece has a 1/50 cttw diamond and the total weight for this diamond stud pair is 1/20 cttw.

Category

21st Century and Contemporary Indian Contemporary More Earrings

Materials

Diamond, White Diamond, Gold, 10k Gold, White Gold, Yellow Gold

59.87 carat Opal wtith Diamond Bezel Pendant 14k Yellow Gold 20 inch Necklace
59.87 carat Opal wtith Diamond Bezel Pendant 14k Yellow Gold 20 inch Necklace

59.87 carat Opal wtith Diamond Bezel Pendant 14k Yellow Gold 20 inch Necklace

Located in Sherman Oaks, CA

14KT Yellow Gold Fashion Opal Pendant w/ Diamond Bezel TSW = 59.87 ct One Electronically Tested 14KT Yellow Gold Ladies Cast Fashion Pendant Bright Polish Finish Good Condition Pend...

Category

1990s Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, Yellow Gold

PANIM 20 Carat Briolette Diamond Chandelier Grape Earrings in 18 Karat Gold
PANIM 20 Carat Briolette Diamond Chandelier Grape Earrings in 18 Karat Gold

PANIM 20 Carat Briolette Diamond Chandelier Grape Earrings in 18 Karat Gold

By PANIM

Located in Tsim Sha Tsui, Hong Kong

PANIM 20cts Briolette Diamond Chandelier Grape Earrings in 18 Karat White Gold. - White Diamonds/20.12ct - 18K White Gold/5.195g Designed and crafted at Panim Creations

Category

21st Century and Contemporary Indian Modern Chandelier Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold, Gold

.20 Carat Natural Round Diamond Ring 14 Karat Bow Deco*
.20 Carat Natural Round Diamond Ring 14 Karat Bow Deco*

.20 Carat Natural Round Diamond Ring 14 Karat Bow Deco*

Located in New York, NY

.20ct Natural Round Cut Diamond Vintage Bow Form Ring Vs-2 clarity H color. 14kt yellow gold 5.5 Grams Band: 9mm wide Depth: 5mm Current ring size: 7 May professionally resize...

Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Diamond Riviera Three Claws 20 Carat White Gold Tennis Line Necklace 18 Kt
Diamond Riviera Three Claws 20 Carat White Gold Tennis Line Necklace 18 Kt

Diamond Riviera Three Claws 20 Carat White Gold Tennis Line Necklace 18 Kt

By Antinori Fine Jewels

Located in Chicago, IL

This stunning and impressive Riviera Necklace features substantial Diamond weight of 20 Carats in beautifully Round Brilliant Cut gems with a sparkly excellent cut 18k white gold gr...

Category

2010s Unknown Contemporary Link Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

20 Carat Riviera Round Brilliant Cut Necklace 18 Carats White Gold
20 Carat Riviera Round Brilliant Cut Necklace 18 Carats White Gold

20 Carat Riviera Round Brilliant Cut Necklace 18 Carats White Gold

By Antinori Fine Jewels

Located in Chicago, IL

An exquisite riviera necklace of 20 carats

Category

2010s Italian Modern Multi-Strand Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

20 Carat Oval Kunzite and Diamond Ring in White Gold
20 Carat Oval Kunzite and Diamond Ring in White Gold

20 Carat Oval Kunzite and Diamond Ring in White Gold

Located in Wailea, HI

20 carat Oval Kunzite and Diamond Ring in White Gold Featuring a 20 carat (approximately) Thirty Six Round Cut Diamonds weighing .20 carats approximately Currently size 9.

Category

Late 20th Century Unknown Fashion Rings

Materials

White Diamond, Kunzite, 14k Gold

Certified Imperial Jade 20 Carats, Pink Tourmaline & Diamond Goldfish Pendant.
Certified Imperial Jade 20 Carats, Pink Tourmaline & Diamond Goldfish Pendant.

Certified Imperial Jade 20 Carats, Pink Tourmaline & Diamond Goldfish Pendant.

Located in Hong Kong, HK

Please check out the HD video! In addition to being a status symbol, wearing jade traditionally has been known to grant the user good luck, health, prosperity and longevity. In add...

Category

2010s Hong Kong Pendant Necklaces

Materials

Coral, Diamond, White Diamond, Jade, Tourmaline, Gold, 18k Gold, White Gold

Huge Maderia Mixed Cut Citrine 20 Plus Carat Diamond Surround
Huge Maderia Mixed Cut Citrine 20 Plus Carat Diamond Surround

Huge Maderia Mixed Cut Citrine 20 Plus Carat Diamond Surround

Located in North Hollywood, CA

This necklace is a drop style with a 1.50 carat round Citrine and a large oval Madeira Citrine drop of over 20 carats with a Diamond surround.

Category

2010s Brazilian Modern Drop Necklaces

Materials

Citrine, White Diamond, 18k Gold

2 Carat Emerald Cut Diamond Half Eternity Band 20 Pts
2 Carat Emerald Cut Diamond Half Eternity Band 20 Pts

2 Carat Emerald Cut Diamond Half Eternity Band 20 Pts

Located in Rutherford, NJ

Gold- 2.80 gms Diamond- 2.10 carats Diamond Colour: G-H Diamond Clarity: SI Ring Weight: 3.22 gms Ring Size: 6.5 US *In stock items will be shipped in 2 business days, or please allo...

Category

21st Century and Contemporary Indian Band Rings

Materials

Diamond, 14k Gold, 18k Gold

.20 Carat Total Weight Art Deco Diamond Platinum Wedding Ring
.20 Carat Total Weight Art Deco Diamond Platinum Wedding Ring

.20 Carat Total Weight Art Deco Diamond Platinum Wedding Ring

Located in Hicksville, NY

Ring Size: 4.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.6 grams Diamond Details: Weight: .20ct, total weight Cut: Old European brilliant Color: G Clarity: VS Shank/...

Category

Vintage 1920s Unknown Art Deco Wedding Rings

Materials

Diamond, Platinum

.20 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
.20 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

.20 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

Located in Hicksville, NY

Ring Size: 4.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.20 grams Center Diamond Details: Weight: .20ct, total weight Cut: Old European brilliant Color: F-G Clarity: ...

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Natural Diamonds 0. 20 carats 18KT White Gold Floral Bar Chain Pendant Necklace
Natural Diamonds 0. 20 carats 18KT White Gold Floral Bar Chain Pendant Necklace

Natural Diamonds 0. 20 carats 18KT White Gold Floral Bar Chain Pendant Necklace

Located in Antwerpen, BE

Let your style shine through with the sparkling combination of diamond Cluster Flower along with the Solitaire Gold Flower showcased in a Curved bar pendant necklace of gleaming Rose...

Category

2010s Belgian Artisan Chain Necklaces

Materials

Diamond, 18k Gold, White Gold

Vintage Platinum Drop Necklace with 20 Carat Old European Cut Diamonds 37.24g
Vintage Platinum Drop Necklace with 20 Carat Old European Cut Diamonds 37.24g

Vintage Platinum Drop Necklace with 20 Carat Old European Cut Diamonds 37.24g

Located in New York, NY

Detailed Description: Elevate your elegance with this vintage platinum necklace, featuring an impressive 7.1-carat diamond as the centerpiece, accompanied by 152 smaller diamonds tot...

Category

20th Century Pendant Necklaces

Materials

Diamond, Platinum

Diamond Necklace by the Yard Station 14k White Gold .20 Carat
Diamond Necklace by the Yard Station 14k White Gold .20 Carat

Diamond Necklace by the Yard Station 14k White Gold .20 Carat

By Estate Jewelry

Located in East Brunswick, NJ

Diamond Necklace by the Yard Station 14K White Gold .20 carat This pretty estate necklace is finely crafted in solid 14K White Gold.

Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

14K Tennis Necklace 20 Pointer Diamonds
14K Tennis Necklace 20 Pointer Diamonds

14K Tennis Necklace 20 Pointer Diamonds

By Belfiore Jewelry

Located in Great Neck, NY

Diamond tennis necklace 16 inch set in 14K white gold. Each stone weighs approximately 0.20 carats, the total weight is 21.65 carats. The color of the stones are G, the clarity is SI...

Category

21st Century and Contemporary American Modern Necklace Enhancers

Materials

Diamond, 14k Gold

Multi Strand Tennis Bracelet 14 Karat White 20 Carats
Multi Strand Tennis Bracelet 14 Karat White 20 Carats

Multi Strand Tennis Bracelet 14 Karat White 20 Carats

By Belfiore Jewelry

Located in Great Neck, NY

This bracelet is a timeless piece set with 20 carats of diamonds. Each stone weighs approximately 0.07-0.08 carats.

Category

2010s Italian Modern Tennis Bracelets

Materials

Diamond, 14k Gold

2 Carat Diamond  Bangle /Bracelet in 18 Karat Yellow Gold 20 Grams, Signed SGJ
2 Carat Diamond  Bangle /Bracelet in 18 Karat Yellow Gold 20 Grams, Signed SGJ

2 Carat Diamond Bangle /Bracelet in 18 Karat Yellow Gold 20 Grams, Signed SGJ

Located in New York, NY

BANGLE / CUFF IN 18K GOLD WITH DIAMONDS BY SGJ, Medium size , 20.4 gm It features a bangle style Bracelet crafted from 18 karat Yellow gold and embedded with total approximately...

Category

2010s Bangles

Materials

Diamond, 18k Gold, Yellow Gold

20 Carat Oval Cut Emerald & Rose-Cut Diamond Statement 18k Necklace
20 Carat Oval Cut Emerald & Rose-Cut Diamond Statement 18k Necklace

20 Carat Oval Cut Emerald & Rose-Cut Diamond Statement 18k Necklace

Located in Miami, FL

A true one-of-a-kind masterpiece, this 18K white gold statement necklace showcases 20 carats of unmistakably natural emeralds, each linked with rose-cut natural diamonds for a refine...

Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Emerald, Gold, 18k Gold, White Gold

Impressive 20 Carat Natural Citrine and Diamond 18k Yellow Gold Cocktail Ring
Impressive 20 Carat Natural Citrine and Diamond 18k Yellow Gold Cocktail Ring

Impressive 20 Carat Natural Citrine and Diamond 18k Yellow Gold Cocktail Ring

Located in Napoli, NA

The ring is centered by a magnificent natural citrine weighing approximately 20 carats, displaying a particularly vivid and intense golden-orange color.

Category

21st Century and Contemporary Italian Cocktail Rings

Materials

Diamond, Citrine, Gold, 18k Gold, Yellow Gold

14 Karat White Gold .20 Carat Natural Diamond Wedding Band Ring
14 Karat White Gold .20 Carat Natural Diamond Wedding Band Ring

14 Karat White Gold .20 Carat Natural Diamond Wedding Band Ring

Located in Baltimore, MD

14K White Gold .20 Carat Natural Diamond Wedding Band Ring Size 6.5 Metal: 14k white gold Weight: 1.93 grams Diamonds: 19 round brilliant cut natural diamonds, approx. .20 CTW G VS...

Category

21st Century and Contemporary Modern Band Rings

Materials

Diamond, 14k Gold, White Gold

Diamond Twist Satin Finish Band in 14k White Gold .20 Carat Stackable Ring
Diamond Twist Satin Finish Band in 14k White Gold .20 Carat Stackable Ring

Diamond Twist Satin Finish Band in 14k White Gold .20 Carat Stackable Ring

By Five Star Jewelry

Located in Austin, TX

Like entwined ribbons, these diamonds wrap around your finger with style. The unique part of this ring is that it is two different designs intertwined- a round brilliant diamond band...

Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, 14k Gold, White Gold

3, 20 Carat Old Cut Cushion Diamonds Engagement Ring, 19th Century
3, 20 Carat Old Cut Cushion Diamonds Engagement Ring, 19th Century

3, 20 Carat Old Cut Cushion Diamonds Engagement Ring, 19th Century

Located in SAINT-OUEN-SUR-SEINE, FR

Exquisite 19th Century Flower-Shaped Diamond Ring Second half of the 19th century This captivating flower-shaped ring is set with eight old-cut diamonds surrounding a cushion-cut ce...

Category

Antique 19th Century French Romantic Engagement Rings

Materials

Diamond, 18k Gold

10K Two Tone Gold 1/20 Carat Round Cut Diamond Spiral Earring
10K Two Tone Gold 1/20 Carat Round Cut Diamond Spiral Earring

10K Two Tone Gold 1/20 Carat Round Cut Diamond Spiral Earring

Located in New York, NY

Each earring piece has a 1/50 cttw diamond and the total weight for this diamond stud pair is 1/20 cttw.

Category

21st Century and Contemporary Indian Contemporary More Earrings

Materials

Diamond, White Diamond, Gold, 10k Gold

2.65 Carat Natural Diamond Eternity Band Ring G SI 18 Karat White Gold 20
2.65 Carat Natural Diamond Eternity Band Ring G SI 18 Karat White Gold 20

2.65 Carat Natural Diamond Eternity Band Ring G SI 18 Karat White Gold 20

By Morris & David

Located in New York, NY

2.65 Carat Natural Diamond Eternity Ring G SI 18K White Gold 100% Natural Diamonds, Not Enhanced in any way Round Cut Diamond Eternity Band 2.65CT G-H SI 18K White Gold Prong style ...

Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, White Gold, 18k Gold

40 Round Diamond 20 Pointer Each Tennis Bracelet in 14 Karat Gold 8 Carat 7 "
40 Round Diamond 20 Pointer Each Tennis Bracelet in 14 Karat Gold 8 Carat 7 "

40 Round Diamond 20 Pointer Each Tennis Bracelet in 14 Karat Gold 8 Carat 7 "

Located in New York, NY

40 Round Diamond 20-22Pointer Each Tennis Bracelet in 14 Karat Gold 8 Carat 7 " Meet the ultimate bold tennis bracelet.

Category

2010s Unknown Tennis Bracelets

Materials

Diamond, Gold, 14k Gold

14k Yellow & White Gold .03 Carat Halo Diamond Cross Necklace 20"
14k Yellow & White Gold .03 Carat Halo Diamond Cross Necklace 20"

14k Yellow & White Gold .03 Carat Halo Diamond Cross Necklace 20"

Located in Eagan, MN

This is a very pretty cross necklace. It has a 2 mm center diamond that is enhanced with a halo. It totals .03 carats. The setting is both yellow and white gold which draws attent...

Category

21st Century and Contemporary Unknown Art Deco Choker Necklaces

Materials

Diamond, 14k Gold, Yellow Gold, White Gold

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20 Carat Diamond For Sale on 1stDibs

Find the exact 20 carat diamond you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. Find an antique version now, or shop for 10357 vintage or 1574 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a 20 carat diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Creating a 20 carat diamond has been a part of the legacy of many jewelers, but those produced by Luigi Ferrara, Tiffany & Co. and Cartier are consistently popular. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and old european cut alternatives. When shopping for a 20 carat diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 20 Carat Diamond?

On average, a 20 carat diamond at 1stDibs sells for $5,494, while they’re typically $71 on the low end and $6,500,000 for the highest priced versions of this item.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in. 

Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement rings, vintage engagement rings or Art Deco engagement rings. 

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.