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TIFFANY & Co. Etoile Platinum .20ct Solitaire Diamond Engagement Ring 4.75
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Etoile Platinum .20ct Solitaire Diamond Engagement Ring 4.75 Metal: Platinum Size
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Tiffany & Co Engagement Ring .20ct G-VS1  Diamond Solitaire Platinum
By Tiffany & Co.
Located in Dearborn, MI
Tiffany & Co Engagement Ring .20ct G-VS1  Diamond Solitaire Platinum Featuring a SUPERB Tiffany
Category

2010s Solitaire Rings

Materials

Diamond, Platinum

Tiffany & Co. Diamond Solitaire Engagement Ring Platinum .20ct H/Vs1
By Tiffany & Co.
Located in New York, NY
TIFFANY & CO. DIAMOND SOLITAIRE ENGAGEMENT RING PLATINUM .20CT E/VS1 This charming Tiffany & Co
Category

2010s Solitaire Rings

Materials

Diamond, Platinum

ct 2, 20 Diamond 18 kt White Gold Solitaire Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Solitaire ring in 18kt white gold composed of one central
Category

Late 20th Century Italian Retro Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

.20ct. mens natural round diamond solitaire ring 14kt gold H/Vs
Located in New York, NY
Men's round diamond & brush finish ring. .20ct. center round diamond. Full Cut, Brilliant Vs-2
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

.20ct Natural Round Diamond Ring 14kt Unisex
Located in New York, NY
.20ct Natural Round Diamond & Single cut diamond Ring Vs-2 clarity H color. 14kt yellow gold. 8
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Victorian 14k Old Mine Cut Diamond Snake Ring .20ct
Located in Narberth, PA
stacked band. A spectacular prong set .20ct old mine cut diamond rests in the snake's head. The snake
Category

Antique Late 19th Century Victorian Solitaire Rings

Materials

Diamond, 14k Gold

GIA Certified 1.49ct Pear Shape diamond ring .20ct. round accents 14kt
Located in New York, NY
GIA Certified Diamond engagement ring. 1.49ct. Natural Pear Shape diamond GIA Certificate
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

.20ct Natural Round Diamond Carved Mother of Pearl Cross over Ring 18kt
Located in New York, NY
throughout. .20 carat natural diamonds round full cut g color vs2 clarity. 18 karat yellow gold 11.1 g
Category

2010s American Solitaire Rings

Materials

Diamond, Pearl, 18k Gold, Yellow Gold

Georgian 2.0 Ct rare Pointed Diamond Solitaire Plus
Located in Napoli, IT
Quintessence of beauty A Stunning, rare, possibly pre Georgian Diamond solitaire ring The beauty
Category

Antique Mid-18th Century European Solitaire Rings

Materials

Diamond, Gold

Art Deco Style 14 Karat Gold & Diamond Solitaire Ring
Located in Philadelphia, PA
A very fine diamond and gold solitaire ring. With a round brilliant cut diamond bezel set in an
Category

20th Century American Art Deco Solitaire Rings

Materials

Diamond, Gold, 14k Gold

Mens Diamond Ring 14k Gold Band .20 Carat Solitaire Vintage
By Estate Jewelry
Located in East Brunswick, NJ
Mens Diamond Ring 14K Gold Band .20ct Solitaire Vintage This amazing vintage ring is finely
Category

Late 20th Century Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Art Deco 3.60 Ct Old European Diamond Solitaire Platinum Ring
Located in Napoli, IT
effective classy mount originated in the 20’s to last for ever The large and sparkling solitaire Diamond is
Category

Vintage 1920s European Art Deco Solitaire Rings

Materials

Diamond, Platinum

.32 Carat Mens Natural Round Diamond Solitaire Ring 14 Karat
Located in New York, NY
Men's round diamond & brush finish ring. .20ct. center round diamond. Full Cut, Brilliant Vs-2
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

1948 Retro Ring solid 18K Gold 20ct Citrine Ø 7.75 US /15.6 gr
Located in SE
Yellow Gold, step- cut Citrine 18 mm x 13 mm x 10 mm deep / ca 20 ct. The stone is of the finest quality
Category

Vintage 1940s Swedish Retro Solitaire Rings

Materials

Citrine, 18k Gold

Vintage Style 6.0 Ct. Ruby Red Fire Opal Diamond Solitaire ring
Located in Napoli, IT
, approx . 20 Ct of Diamonds between Swiss and brilliant cut, G/H VVS/SI Crown is 15 mm. X 13 mm. (h. x w
Category

Antique 1880s European Contemporary Solitaire Rings

Materials

Diamond, Opal, Fire Opal, 18k Gold

0.37 Carat Round Diamond Solitaire Ring in White Gold with Accents
Located in Sherman Oaks, CA
brilliant cut diamond measuring 4.50 - 4.50 x 2.90mm approximate weight of 0.37 ct. Graded in the setting
Category

Early 2000s American Modern Solitaire Rings

Materials

Diamond, 18k Gold

PHILIPPE SPENCER 3.5mm COLORLESS Diamond in 22K and 20K Gold Solitaire
By PHILIPPE SPENCER
Located in Key West, FL
PHILIPPE-SPENCER - 3.5mm COLORLESS (D-F) Diamond, .18 Ct. wrapped in Pure 22K Gold Bezel with
Category

21st Century and Contemporary American Artisan Solitaire Rings

Materials

Diamond, Gold, 22k Gold

PHILIPPE SPENCER .40 Ct. Yellow Diamond in 22K and 20K Gold Solitaire Ring
By PHILIPPE SPENCER
Located in Key West, FL
PHILIPPE-SPENCER - .40 Ct. Natural Yellow Rose Cut Diamond wrapped in 22K Gold Bezel with Solid
Category

21st Century and Contemporary American Artisan Solitaire Rings

Materials

Yellow Diamond, Gold, 22k Gold

Estate 1.21 Ct Emerald Cut Diamond G VVS1 Diamond Ring
Located in Napoli, IT
/VVS1) – 2 tapered baguette cut diamonds totalling approx .20 Ct (G/VVS) UK size: N 1/4 US size: 6.75
Category

Late 20th Century European Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Wentwood Diamond and Sapphire Ring
Located in Derby, NY
: Type: Diamond Shape : Marquise Clarity : SI2 Color : J Weight : 0.50 ct Side Stone 1: Type : Diamond
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Sapphire, White Gold

14K Yellow Gold Vintage Estate Diamond Ring 0.20ct
Located in Laguna Beach, CA
Vintage 14k Yellow Gold Estate Diamond Ring. 1.8 grams total weight. 3.7mm diameter diamond which
Category

Mid-20th Century Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Vintage Sapphire Diamonds Curling Motif Ring 14kt
Located in New York, NY
transparent. .20ct natural round diamonds .10ct Rubies 14kt rose gold 9.5 grams Depth of ring 13 mm
Category

2010s American Solitaire Rings

Materials

Diamond, Sapphire, 14k Gold, Rose Gold

4.68ct Natural Emerald Diamonds Ring 14kt Gold
Located in New York, NY
Transparent .20ct. Diamonds. Round & full cut H-color Vs-2 clarity. 14kt. white gold 4.5 grams Ring
Category

2010s American Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Antique Diamond Chased Gold Men’s Ring
Located in Chicago, IL
diamond (J color, SI2 clarity, 6.4-6.3 x 4.3 mm, approximately 1.10 ct). Width 10 mm (3/8 in
Category

Antique Late 19th Century Victorian Solitaire Rings

Materials

Diamond

Attractive Diamond Ring in 18 Karat White Gold
Located in Lucerne, CH
Very cute diamond ring 18 karat white gold. The center stone, a brilliant-cut 0.84 ct diamond of G
Category

Late 20th Century Unknown Modern Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

14 Karat White Gold Ruby and Diamond Ring
Located in Washington Depot, CT
. Ruby weight: 2.07 ct. Total diamond weight: .20 ct. Diamond color: G-H Diamond clarity: SI1-VS2
Category

20th Century Solitaire Rings

Materials

Diamond, Ruby, White 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

18K White Gold 3 Stone Diamond Ring .50tdw, 3.2gr
Located in Laguna Beach, CA
3.2gr and is stamped 18k There are three Round Brilliant Cut Diamonds, Center stone is .20ct, and both
Category

Mid-20th Century Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Unique Three Dimensional .45ct Natural Diamonds Curling Motif Ring 14kt
Located in New York, NY
.45ct ttw Natural round Cut Diamond Ring (center .25ct & Sides: .20ct) vs-2 clarity G color
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

Classic 18K White Gold Ring with 0.74 ct Natural Diamonds- GIA Certificate
Located in רמת גן, IL
diamond main stone of 0.50 ct. cut: round brilliant color: F clarity: VS1 -20 diamond side stones of
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

1.01 Carat Natural Princess Cut Diamond Ring 14 Karat
Located in New York, NY
Side diamonds: .20ct. Rounds, Brilliant Full cuts H color, Vs-2 clarity. 14kt. white gold 5 Grams
Category

2010s American Solitaire Rings

Materials

Diamond, 14k 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

HRD Certified Fancy Yellow Diamond Ring 0.41ct VS Natural Color Made in Germany
Located in Viena, Viena
added a top fancy yellow cushion (cushion shape) diamond with 0.41 ct, VS2, cut very good / good, 4.58 x
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Yellow Diamond, 18k Gold, White Gold

GIA Certified .61ct Heart Diamond Ring 14kt Classic G/I1
Located in New York, NY
Diamonds: .20ct G-color Vs-2 clarity (GIA Report attached) 14Kt yellow gold 9.2 grams. current size
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

GIA 1.21 Carat European Cut Diamond Ring F/VS2 Platinum
Located in New York, NY
diamonds: .20ct. G-color, Vs-2 clarity. 14kt. white gold depth of ring: 6.6mm 4 grams total weight
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Ladies 14K White Gold Hidden Halo Accented Diamond Semi Mount Engagement Ring
Located in Houston, TX
 grams Ladies 14K white gold diamond engagement semi-mount accented hidden halo ring with a half round
Category

21st Century and Contemporary Unknown Solitaire Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Antique 2.20 Carat Old Mine Round Natural Diamonds Ring 18 Karat
Located in New York, NY
clarity Each diamond: 6mm diameter Side trilliant diamonds: .20ct I-color si-2 clarity. 18kt
Category

2010s American Victorian Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

2.00 Carat Natural Blood Red Orange Spinel Diamonds Bypass Ring 14 Karat
Located in New York, NY
/ Blood Orange color. Round, full cut diamonds: .20ct. H color, vs-2 clarity. 14kt. white gold. 8
Category

2010s American Solitaire Rings

Materials

Diamond, Spinel, 14k Gold, White Gold

GIA Certified 1.90 Carat Natural No Heat Pink Sapphire Diamonds Ring 14 Karat
Located in New York, NY
.20ct. Round Diamonds & .20ct. Baguette Diamonds. G-color Vs-2 clarity. 14kt. white gold 4.7 grams
Category

2010s American Solitaire Rings

Materials

Diamond, Pink Sapphire, 14k Gold, White Gold

Natural 8 Carat Emerald Cut Zambian Emerald & Diamond Ring in Platinum, Estate
Located in New York, NY
desirable color . Origin Zambia Platinum 20 gm with stone Diamonds: Baguettes & Brilliant cut round
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, Platinum

Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design. Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category

2010s Italian Contemporary Solitaire Rings

Materials

White Diamond, Gold, 18k Gold, White Gold

Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design. Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category

2010s Italian Contemporary Solitaire Rings

Materials

White Diamond, Gold, 18k Gold, White Gold

GIA 1.78 Carat Natural No Heat Bright Pink Sapphire Diamond Ring 18 Karat
Located in New York, NY
.20ct. Diamonds. Round & full cuts H-color Vs-2 clarity. 18kt. yellow gold 4.2 grams Ring
Category

2010s American Solitaire Rings

Materials

Diamond, Pink Sapphire, 18k Gold, Yellow Gold

GIA Certified 1.19 Carat Oval Cut Red No Heat Ruby Diamonds Ring 14 Karat
Located in New York, NY
3.54mm GIA: Purplish Red No Heat / Fully Natural .20ct. side round diamonds. H-color vs-2 clarity
Category

2010s American Solitaire Rings

Materials

Diamond, Ruby, 14k Gold, Rose Gold

1946 Ring 0.45 ct Diamond solid 18K Gold Silver Ø 7US / 3.2gr
Located in SE
. Natural rose cut Diamond in Silver bezel measures Ø 4.5 mm x 1.7 mm deep / about 0.45 ct. Color ca. I, J
Category

Vintage 1940s Swedish Art Nouveau Solitaire Rings

Materials

Diamond, 18k Gold, Silver

2.1 Carat Faceted Checkerboard Red Garnet Ring with Diamonds, 24k Gold & SS
By Kurtulan
Located in Bozeman, MT
- Diamonds: 0.02 ct, Colour: H Clarity: VS2- NON 0.15 ct About Kurtulan: Kurtulan jewellery manufacturing
Category

21st Century and Contemporary Turkish Byzantine Solitaire Rings

Materials

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

2 Carat Natural Cushion Cut Emerald & Diamond Ring 14 Karat White Gold
Located in New York, NY
inclusions Cushion shape Emerald has one 20 pointer diamond on each side . Big round diamonds on both sides
Category

2010s Solitaire Rings

Materials

Emerald, Diamond, 14k Gold, White Gold

GIA Certified .74 Carat Round Cut Diamond and 1.00 Carat Ring 14 Karat and Band
Located in New York, NY
. Band: .20ct. side round diamonds G color, Vs-2 clarity. 14Kt white gold Total 2 rings: 6.6 grams
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

Ladies 14k White Gold Semi Mount Round Diamond Engagement Ring
Located in Houston, TX
14 Karat White Gold with: Twenty (20) round brilliant cut natural diamonds: Measurements1.30mm
Category

21st Century and Contemporary Solitaire Rings

Materials

14k Gold, White Gold

Ladies 18K White Gold Diamond Sapphires Marquise Semi Mount Engagement Ring
Located in Houston, TX
(20) round brilliant cut natural diamonds: Measurements: 0.80mm - 1.30mm in diameter x ~0.64mm in
Category

21st Century and Contemporary Unknown Solitaire Rings

Materials

18k Gold, White Gold

Ladies Tolkowsky Legacy 14k White Gold Semi Mount Halo Diamond Engagement Ring
By Tolkowsky
Located in Houston, TX
set in 14 Karat White Gold with: Twenty (20) round brilliant cut natural diamonds: Measurements
Category

21st Century and Contemporary Solitaire Rings

Materials

14k Gold, White Gold

GRS Certificate n.h. Burma Myanmar Ruby Brilliant Ring 2.60 ct 2.38 ct Platinum
Located in Viena, Viena
diamond baguettes totaling approx. 2.38 ct, TW-W (fine white-white)/ IF-VVS (flawless-very small
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Ruby, Platinum

GIA Certified .98 Carat Natural Ruby Ring 14 Karat
Located in New York, NY
6.80 X 5.17 X 2.53mm Full cut oval brilliant, Transparent Even Red .20ct side round diamonds H
Category

2010s American Solitaire Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

1930's German Ring solid 14K Gold 15 ct Citrine Ø6.5 US / 10.7gr
Located in SE
set Citrine/variety of Quartz stone measuring 15 mm x 14 mm x 9 mm /about 15 ct. The Stone is eye
Category

Vintage 1930s German Art Deco Solitaire Rings

Materials

Citrine, 14k Gold

Rrp £20, 000 Tiffany & Co Platinum 1.40 Ct Diamond Solitaire Stud Earrings Pair
By Tiffany & Co.
Located in GB
huge Tiffany & Co Platinum and 1.40ct Diamond Solitaire stud earrings RRP £20,000 An exquisite pair of
Category

21st Century and Contemporary English Contemporary Stud Earrings

Materials

Diamond, Platinum

Cartier Santos Men's 40mm Large Steel Watch Roman Iced 20ct Diamonds SOLITAIRE W
By Cartier
Located in Pleasanton, CA
Cartier Santos Mens 40mm Watch. A Pre-owned watch w/ Original Box and 2019 Papers. Watch is 100% Authentic and Comes with Authenticity Card. Watch Reference is WSSA0018 and is in Exc...
Category

2010s Swiss Wrist Watches

Materials

Diamond, Steel

Disney Enchanted Diamond Men's Ring - White Gold 14k Round .20ct Wedding Band
By Walt Disney
Located in Greensboro, NC
White Gold & 14k Yellow Gold Stone Information Natural Diamond Carat(s): .20ct Cut: Round Brilliant
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

Kieselstein Cord 18k Gold Large GIA 20ct Bezel Rubellite Tourmaline Diamond Ring
By KIESELSTEIN-CORD
Located in Montclair, NJ
:) --Stone(s):-- (1) Natural Genuine Tourmaline - Bezel Set - Rich & Fine Purple Red Color - 20+ct (approx
Category

1990s Cocktail Rings

Materials

Diamond, Tourmaline, 18k Gold

Tiffany & Co. Peretti Diamonds by the Yard Necklace 16" Platinum 950 Round .20ct
By Tiffany & Co.
Located in Greensboro, NC
Metal Content: 950 Platinum Stone Information Natural Diamond Carat(s): .20ct Cut: Round Brilliant
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Platinum

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20ct Solitaire Diamond For Sale on 1stDibs

You are likely to find exactly the 20ct solitaire diamond you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using gold, white gold and 18k gold. In our selection of items, you can find a vintage example as well as a contemporary version. You’re likely to find the perfect 20ct solitaire diamond among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. There have been many well-made iterations of the classic 20ct solitaire diamond over the years, but those made by Daizy Jewellery, Tiffany & Co. and Antinori Fine Jewels are often thought to be among the most beautiful. A round cut version of this piece has appeal, but there are also brilliant cut and cushion cut versions for sale. Most of our 20ct solitaire diamond for sale are for women, but there are 66 pieces available to browse for men.

How Much is a 20ct Solitaire Diamond?

The price for a 20ct solitaire diamond starts at $170 and tops out at $2,800,000 with these rings, on average, selling for $3,000.

Finding the Right rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.