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20 Carat Diamond Solitaire

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Mens Diamond Ring 14k Gold Band .20 Carat Solitaire Vintage
By Estate Jewelry
Located in East Brunswick, NJ
crafted in solid 14K Yellow Gold and set with a round brilliant cut diamond. The diamond is .20 carat of
Category

Late 20th Century Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Contemporary 0.66 Carat Solitaire Diamond Engagement Ring 18 Carat White Gold
Located in Hamilton, AU
Forged in 18 carat white gold, this fabulous contemporary solitaire ring features a gorgeous 0.66
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

20 Carat Rubellite Tourmaline and Diamond Cocktail Ring
Located in New York, NY
diamond 18k rose gold solitaire setting Diamond Weight: approximately 1.84 cts Ring Size: 5.5 Re
Category

Early 2000s Solitaire Rings

Materials

Rubelite, Tourmaline, Diamond, 18k Gold, Rose Gold

14k Gold 0.15 Carat Solitaire Marquise Diamond Engagement Ring
By Oshi Jewels
Located in Bangkok, TH
0.15 CTW A marquise-cut solitaire diamond ring with a bezel setting creates the ideal ring for
Category

21st Century and Contemporary Thai Modern Solitaire Rings

Materials

Diamond, White Gold, Yellow Gold, 14k Gold, Rose Gold

18k Gold 0.15 Carat Solitaire Marquise Diamond Engagement Ring
By Oshi Jewels
Located in Bangkok, TH
0.15 CTW marquise-cut solitaire diamond ring with a bezel setting creates the ideal ring for daily
Category

21st Century and Contemporary Thai Modern Solitaire Rings

Materials

Diamond, Rose Gold, White Gold, Yellow Gold, 18k Gold

18k Gold 0.15 Carat Solitaire Marquise Diamond Minimalist Ring
By Oshi Jewels
Located in Bangkok, TH
0.15 CTW Marquise cut solitaire diamond ring is set in a bezel setting which makes it a perfect
Category

21st Century and Contemporary Thai Modern Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold, White Gold, Yellow Gold

14k Gold 0.15 Carat Solitaire Marquise Diamond Minimalist Ring
By Oshi Jewels
Located in Bangkok, TH
0.15 CTW Marquise cut solitaire diamond ring is set in a bezel setting which makes it a perfect
Category

21st Century and Contemporary Thai Modern Solitaire Rings

Materials

Diamond, 14k Gold, Rose Gold, White Gold, Yellow Gold

GIA Certified 5.07 Carat Handmade Solitaire Diamond Platinum Engagement Ring
By H & H Jewels
Located in Miami, FL
This captivating round diamond platinum engagement ring features an exquisite 5.07 carat center
Category

2010s American Solitaire Rings

Materials

Diamond, Platinum

Contemporary 0.50 Carat GIA Certified Diamond Solitaire Ring 18 Carat White Gold
Located in Hamilton, AU
Forged in 18 carat white gold, this stunning contemporary solitaire ring features a gorgeous GIA
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

0.37 Carat Round Diamond Solitaire Ring in White Gold with Accents
Located in Sherman Oaks, CA
One electronically tested 18KT white gold ladies cast diamond unity ring with a bright finish
Category

Early 2000s American Modern Solitaire Rings

Materials

Diamond, 18k Gold

Contemporary 0.55 Carat Marquise Cut Diamond Solitaire Ring 18 Carat White Gold
Located in Hamilton, AU
diamond is estimated to weigh 0.55 carats with G colour and SI2 clarity grades. It measures approximately
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

18 Karat White Gold 0.74 Carat Diamond Solitaire Style Ring
Located in Southampton, GB
Many of our items include UK VAT at 20%. This means we may be able to remove this when you are
Category

20th Century Unknown Solitaire Rings

Materials

Diamond, White Gold

Contemporary 0.83 Carat Emerald Cut Diamond Platinum Solitaire Engagement Ring
Located in Hamilton, AU
emerald cut diamond is estimated to weigh 0.83 carats with F colour and SI2 clarity grades, and measures
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Platinum

White Gold Diamond Solitaire Ring, 14 Karat Princess Cut 1.02 Carat EGL, USA
Located in Greensboro, NC
Diamond Clarity: I1 Color: H - I Cut: Princess Carat: 1.02ct Solitaire’s EGL USA Report Number: US
Category

20th Century Unknown Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Handmade Contemporary 1.01 Carat Pear Cut IGI Certified Diamond Solitaire Ring
Located in Hamilton, AU
balance of class and simplicity. A captivating 1.01-carat IGI-certified pear brilliant diamond rests in a
Category

21st Century and Contemporary Australian Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Contemporary 1.01 Carat GIA Certified Pear Cut Diamond Solitaire Engagement Ring
Located in Hamilton, AU
holds a captivating 1.01 carat GIA-certified pear cut diamond in a darling claw setting. She has been
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

.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
Category

2010s American Solitaire Rings

Materials

Diamond, Yellow Gold, 14k Gold

GIA Certified 20 Carat COLOMBIAN MINOR OIL Ring
By Antinori Fine Jewels
Located in Rome, IT
An investment grade Oval Cut Natural Colombian Green Emerald & Pear Cut Diamond Engagement Ring
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, Emerald, Platinum, 18k Gold, Yellow Gold

Vintage Circa 1960s Round Brilliant Diamond Solitaire Ring 18 Carat Yellow Gold
Located in Hamilton, AU
Details The round brilliant cut diamond is estimated to weigh 0.16 carats with F colour and VS clarity
Category

20th Century Unknown Modern Solitaire Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Unisex 20 Carat GIA Cats Eye Alexandrite and Canary Diamond Ring
Located in METAIRIE, LA
From our Beverly Hills Estate Collection, this Cats Eye & Canary Diamond Ring features a central
Category

Vintage 1980s Solitaire Rings

Materials

Chrysoberyl, Diamond, Alexandrite, 14k Gold, Yellow Gold, White Gold

Vintage Circa 1930s Old Cut Diamond Solitaire Ring 15 Carat Yellow & White Gold
Located in Hamilton, AU
Ring Gem Details The old cut diamond is estimated to weigh 0.20 carat with G colour and VS clarity
Category

20th Century Unknown Modern Solitaire Rings

Materials

Diamond, Gold, Yellow Gold, 15k Gold, White Gold

Vintage Circa 1940s 18 Carat Yellow & White Gold Old Cut Solitaire Diamond Ring
Located in Hamilton, AU
Crafted in 18 carat yellow and white gold, this charming vintage solitaire ring features an elegant
Category

20th Century Unknown Modern Solitaire Rings

Materials

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

18 Karat White Gold Diamond Solitaire Illusion Ring
Located in Los Angeles, CA
20 round white diamonds totaling of 0.18 carats and 10 baguette white diamonds totaling of 0.09
Category

2010s American Solitaire Rings

Materials

Diamond, White Gold

5.26 Ct Fancy Intense Yellow Cushion-Cut Diamond Solitaire Engagement Ring GIA
By SCARSELLI
Located in New York, NY
platinum ring. Solitaire engagement ring with 5+ carat GIA certified cushion-cut fancy colored diamond
Category

2010s American Contemporary Solitaire Rings

Materials

Yellow Diamond, Diamond, Platinum, Yellow Gold, 18k Gold

Tiffany & Co Engagement Ring .20ct G-VS1  Diamond Solitaire Platinum
By Tiffany & Co.
Located in Dearborn, MI
% Natural Diamond .20 Carat Diamond Weight Solid Platinum Tiffany & Co Ring Spectacular Quality Just as
Category

2010s Solitaire Rings

Materials

Diamond, Platinum

0.23ct Diamond Solitaire Engagement Ring 14k Yellow Gold Size 5 Openwork
Located in McLeansville, NC
Gemstone Information: - Natural Diamond - Carats - 0.23ct Cut - Round Brilliant Color - G - H
Category

20th Century Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Yellow Gold Diamond Solitaire Ring, 14k Round Brilliant Cut .33ct Twist
Located in Greensboro, NC
Stone Information: Natural Diamond Clarity: SI1 Color: J Cut: Round Brilliant Carat(s): 0.33ct Style
Category

Late 20th Century Unknown Solitaire Rings

Materials

Diamond, Yellow Gold

New 14K Rose Gold 5.47ctw Oval Cabochon Garnet Solitaire Diamond Halo Ring
Located in Montclair, NJ
Color - 12x8mm - 5.05ct (exact) (20) Natural Genuine Diamond - Round Brilliant Cut - Prong Set - F/G
Category

2010s American Solitaire Rings

Materials

Diamond, Garnet, Rose Gold

18 carat yellow gold diamonds ring
Located in Monte-Carlo, MC
18 carat yellow gold ring designed with 1 round brillant cut diamond weighing 0.17 carats. Quality
Category

2010s Solitaire Rings

Materials

Diamond, Yellow Gold

New Platinum & 14k Gold 3.61ct GIA No Heat Pink Sapphire Diamond Solitaire Ring
Located in Montclair, NJ
Below for Complete Info ** (20) Natural Genuine Diamonds - Round Brilliant Cut - Prong Set - F/G Color
Category

2010s American Solitaire Rings

Materials

Diamond, Pink Sapphire, 14k Gold, Rose Gold, Platinum

3.06 Carat Round Cut Black Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
surrounded by 20 White Round Cut Diamonds that weigh 0.37 Carats (Clarity/Color: SI2 - F). The total carat
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

White Diamond, Black Diamond, 14k Gold, White Gold

Natural 8 Carat Emerald Cut Zambian Emerald & Diamond Ring in Platinum, Estate
Located in New York, NY
Natural 8 Carat Emerald Cut Zambian Emerald & Diamond Ring in Platinum, Estate A classic design
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, Platinum

3-Stone Emerald & Diamond Ring 1.70 Carat 18 Karat Yellow Gold
Located in Laguna Hills, CA
) Diamonds are 2.90 mm with a total weight of .20 carat. Quality of the diamonds are VS clarity and G-H color
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

2.46 Ct. Opal Emerald Diamond Art Deco Style Solitaire Ring in 14K White Gold
Located in Bangkok, TH
. Number: 6 Weight: 0.12 Carat (approx.) Accent Gemstones II Type: Diamond Shape: Round Average Color: H
Category

21st Century and Contemporary Thai Art Deco Solitaire Rings

Materials

Diamond, Emerald, Opal, 14k Gold, White Gold

7 Carat Rubellite and 1.2 Carat Diamond 18 Karat White Gold Ring
Located in Southampton, GB
Many of our items include UK VAT at 20%. This means we may be able to remove this when you are
Category

21st Century and Contemporary Unknown Solitaire Rings

Materials

Diamond, Rubelite, White Gold

Sapphire and Diamond Halo Ring, 18 Karat White Gold Women's .75 Carat
Located in Greensboro, NC
showcases a sumptuous blue sapphire solitaire framed by a halo of shimmering diamonds that extend down the
Category

21st Century and Contemporary Unknown Solitaire Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Diamond 0.6 Carat Traditional Ring/Band 14 Karat White Gold, Halo Ring
Located in New York, NY
Diamond 0.5 Carat Traditional Ring/Band 14 Karat White Gold, Halo Ring one 25 pointer Brilliant
Category

2010s Solitaire Rings

Materials

Diamond, Gold, 14k Gold, White Gold

2.1 Carat Faceted Checkerboard Red Garnet Ring with Diamonds, 24k Gold & SS
By Kurtulan
Located in Bozeman, MT
Checkerboard Cut Garnet, Diamonds in 24kt Gold and Silver Ring by Kurtulan Jewellery of Istanbul
Category

21st Century and Contemporary Turkish Byzantine Solitaire Rings

Materials

Garnet, Diamond, Gold, 24k Gold, Yellow Gold, Silver, Sterling Silver

.50 Carat Marquise Natural Diamonds Cathedral Ring 14 Karat
Located in New York, NY
.20 round diamonds: I-color Si-2 clarity 14kt. yellow gold. 2.6 grams. Ring Depth: 7.9mm current
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

GIA Certified 8.63 Carat Natural Emerald Diamonds Ring 18 Karat
Located in New York, NY
GIA certified natural emerald and diamonds cluster ring. 8.63 carat natural emerald. F2 clarity
Category

2010s American Solitaire Rings

Materials

Diamond, Emerald, 18k Gold, Rose Gold

12.25 Carat Natural Opal Diamonds Ring 18 Karat Nugget Deco
Located in New York, NY
and some reds. A true holographic effect Opal is NOT a dublet 17 X 8 mm 6.25ct. diamonds Rounds
Category

2010s American Solitaire Rings

Materials

Brown Diamond, Opal, White Diamond, 18k Gold, Yellow Gold

Antique Large Colourful Opal and Diamond 18 Carat White Gold Cluster Ring
Located in St Helens, GB
A stunning antique ring, circa 1910-20. Solid 18 carat white gold example. Split shoulder design
Category

20th Century Solitaire Rings

Materials

Diamond, Opal, White Gold

Vintage Circa 1960s Round Brilliant Diamond Filigree Ring 18 Carat Yellow Gold
Located in Hamilton, AU
diamond is estimated to weigh 0.13 carats with F colour and SI clarity grades. Ring Size R 1/2 (Australia
Category

20th Century Unknown Modern Solitaire Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

2.86 Carat Afghan-Chinese Minor Oil Emerald & Diamond Halo Ring in 18K Gold
By Gad & Co.
Located in Miami, FL
AGL Certified 2.86 Carat Minor Oil Afghan/China Border Origin Emerald and Diamond Halo in 18k White
Category

Vintage 1960s Modern Solitaire Rings

Materials

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

2 Carat Natural Cushion Cut Emerald & Diamond Ring 14 Karat White Gold
Located in New York, NY
A classic, Cocktail ring 2 Carat Natural Cushion Cut Emerald & Diamond Ring 14 Karat White Gold
Category

2010s Solitaire Rings

Materials

Emerald, Diamond, 14k Gold, White Gold

Vintage Circa 1960s Old European Cut Diamond 18 Carat Yellow & White Gold Ring
Located in Hamilton, AU
romance. The Emmie Ring Gem Details The Old European cut diamond is estimated to weigh 0.18 carats with G
Category

20th Century Unknown Modern Solitaire Rings

Materials

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

GIA Certified 49.73 Carat No Heat Color Change Star Sapphire Diamonds Ring 18kt
Located in New York, NY
. Natural Diamonds. Rounds, Full cuts F-G-color Vs-2 clarity. 18kt White Gold / 27.1 grams Ring Current
Category

2010s American Solitaire Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Vintage 1930s 18 Carat Gold Partial Rub over Setting Old Mine Cut Diamond Ring
Located in Hamilton, AU
Crafted in 18 carat gold, this adorable vintage ring, circa 1930s, features a delightful Old Mine
Category

20th Century Unknown Modern Solitaire Rings

Materials

Diamond, 18k Gold, Gold, Yellow Gold

11.36 Carat Natural Holographic Opal Diamond Ring 14 Karat Rare
Located in New York, NY
holographic effect Opal is NOT a dublet 20 X 14 mm 1.60ct. diamonds Rounds and full cuts. H-color, Vs-2
Category

2010s American Solitaire Rings

Materials

Opal, 14k Gold, Yellow Gold

NALLY GIA Natural Color Diamond Ring
Located in New York, NY
GIA certified Colored Diamond Ring. This bombe style ring has with a center diamond of 4.28 carat
Category

21st Century and Contemporary American Artist Solitaire Rings

Materials

Pink Diamond, Diamond, Blue Diamond, Brown Diamond, 18k Gold

5.69 Carat Moonstone Rose Gold Halo Ring
Located in METAIRIE, LA
of approximately 0.70 carats ranking a VVS2-VS2 Clarity With a total of 20 Nearly Colorless Nearly
Category

Vintage 1980s Solitaire Rings

Materials

Diamond, Moonstone, Ruby, 14k Gold, Rose Gold

Old platinum ring with an old-cut diamond 1.35ct
Located in Chorzów, PL
A beautiful old classic ring made of platinum with an "old" european cut diamond, weighing 1.35 ct
Category

Vintage 1920s Scandinavian Solitaire Rings

Materials

Diamond, Platinum

Oval Sapphire with Princess Channel and Diamond 18 Karat Band Ring
Located in Laguna Hills, CA
on either side and measuring an estimated 1.00 carat. The outside has (24) round diamonds on either
Category

20th Century Unknown Contemporary Solitaire Rings

Materials

Diamond, Sapphire, 18k Gold

GIA Certified Euro Cut .55 Carat 14k White Gold Art Deco Inspired Ring
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
: Diamond color D and clarity VS2 carat total weight: .20 metal: 14k white gold type
Category

2010s American Retro Solitaire Rings

Materials

Diamond, White Gold

South Sea Pearl Ring with Sapphires and Diamonds 18 Karat
Located in Laguna Hills, CA
.60 carat. Ring size is 7. The ring measures 20 x 17 millimeters at the longest lengths in diameter
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Sapphire, Yellow Sapphire, South Sea Pearl, Diamond, Yellow Gold, White ...

Diamond Halo Jade Ring in 18K Yellow Gold
Located in Honolulu, HI
14.2 mm x 5.8 mm Diamond Count: 20 round brilliant and 12 baguette diamonds Diamond Weight: ~0.60
Category

Late 20th Century Hong Kong Modern Solitaire Rings

Materials

Diamond, Jade, 18k Gold, Yellow Gold

Classic 18K White Gold Ring with 0.74 ct Natural Diamonds- GIA Certificate
Located in רמת גן, IL
Beautiful 4 Prong Solitaire with Pave Setting made from 18K White Gold with 0.74 total carat of
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

18K White Gold Chopard Happy Diamond Ring, w Box
By Chopard
Located in Laguna Beach, CA
Ladies Chopard square diamond Happy ring in 18k white gold. Engraved 750, 82 /2896-20, Chopard. The
Category

Mid-20th Century Unknown Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

14k Yellow Gold Marquise Shaped Diamond Ring, H Color SI Clarity, Size 6.75
Located in Laguna Beach, CA
shaped diamond is H to i color, Si clarity, .20 carats. The ring size is 6 3/4 and can be sized. Very
Category

Mid-20th Century Solitaire Rings

Materials

Diamond, Yellow Gold, 14k Gold

Vintage Platinum Ideal 5.02ctw GIA Round Brilliant Diamond w/ Waterfall Baguette
Located in Montclair, NJ
Diamonds - Baguette Cut - Channel Set - G/H Color - VS1/VS2 Clarity - 1.85ctw (approx.) Total Carat Weight
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

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20 Carat Diamond Solitaire For Sale on 1stDibs

Surely you’ll find the exact 20 carat diamond solitaire you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Gold, Platinum and White Gold. You can easily find a 522 antique edition and 69 modern creations to choose from as well. You’re likely to find the perfect 20 carat diamond solitaire among the distinctive items we have available, which includes versions made as long ago as the 19th Century as well as those produced as recently as the 21st Century. A 20 carat diamond solitaire from Tiffany & Co., Cartier and Antinori Fine Jewels — each of whom created a beautiful version of this treasured accessory — is worth considering. A round cut version of this piece has appeal, but there are also old european cut and oval cut versions for sale. When shopping for a 20 carat diamond solitaire, 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 Solitaire?

The price for a 20 carat diamond solitaire starts at $280 and tops out at $4,900,000 with these rings, on average, selling for $4,440.