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20 Karat Diamond

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20 Karat Diamond Chain Bracelet
By Coomi
Located in Secaucus, NJ
COOMI Opera Eternity collection chain bracelet set in 20K yellow gold with 0.26cts diamond.
Category

21st Century and Contemporary Chain Bracelets

Materials

Diamond, Yellow Gold

20 Karat Diamond Flower Bracelet
By Coomi
Located in Secaucus, NJ
Affinity flower bracelet set in 20K yellow gold with 0.68cts diamond.
Category

21st Century and Contemporary Chain Bracelets

Materials

White Diamond, White Gold

20 Karat Diamond Flower Earrings
By Coomi
Located in Secaucus, NJ
Affinity flower earrings set in 20K yellow gold with 1.47cts diamond.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, White Gold

20 Karat Diamond Accent Chain Necklace
By Coomi
Located in Secaucus, NJ
Chain necklace set in 20K yellow gold with 0.52cts diamond stations and paisley clasp detail
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

20 Karat Rose Gold Diamond Band
Located in Scottsdale, AZ
Designer: Custom Material: 20K rose gold Diamonds: 3 round cut = .06cttw Color: G Clarity: VS1 Size
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Rose Gold

20 Karat Eternity Diamond Button Earrings
By Coomi
Located in Secaucus, NJ
Eternity button earrings set in 20K yellow gold with 1.29cts diamond, post and clip back.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, Yellow Gold

Vintage Purple Amethyst Diamond Necklace 14 Karat Gold Italian
By Harbor Diamonds
Located in New York, NY
14k made in Italy, approximately 10 g. 20" gold chain Amethyst 23 x 16.5 mm, approximately 25 cts
Category

Antique Early 1900s Italian Contemporary Pendant Necklaces

Materials

Amethyst, Diamond, Gold, 14k Gold

Coomi 20 Karat Gold Luminosity Diamond Pendant
By Coomi
Located in Secaucus, NJ
strategically set in 20-karat yellow gold to reflect light while radiating the positive energy of the wearer
Category

Antique 15th Century and Earlier Thai Artisan Pendant Necklaces

Materials

White Diamond, Gold

14 Karat White Gold Diamond Drop Invisible Setting Earrings 1.40 Carats
By Harbor Diamonds
Located in New York, NY
14 Karat White gold drop earrings featuring 20 round brilliants weighing 0.19 carats and 8 special
Category

2010s American Contemporary Drop Earrings

Materials

Diamond, White Gold

Diamond Wedding Band 3.00 Carat H SI1 14 Karat White Gold
By Harbor Diamonds
Located in New York, NY
14 Karat White gold diamond wedding band featuring 20 round brilliants weighing 3.00 carats
Category

2010s American Contemporary Bridal Rings

Materials

Diamond, White Gold

20 Karat and 22 Karat Sapphire and Macle Diamond Ring
By Pamela Farland
Located in New York, NY
20 and 22 Karat ring with oval blue Sapphire cabochon and Macle Diamonds ring, set in a hammered
Category

21st Century and Contemporary American Artisan Three-Stone Rings

Materials

Diamond, Sapphire, 22k Gold, Yellow Gold

20 Karat Yellow Gold Opera Diamond Link Bracelet
By Coomi
Located in Secaucus, NJ
Eternity Bracelet Set in 20 karat Yellow Gold with 13 Opera Links and 1.10 Carat Rose-Cut Diamonds.
Category

21st Century and Contemporary Thai Contemporary Link Bracelets

Materials

Diamond, Yellow Gold

Coomi 20 Karat Gold Luminosity Diamond Cuff Bracelet
By Coomi
Located in Secaucus, NJ
strategically set in 20-karat yellow gold to reflect light while radiating the positive energy of the wearer
Category

Antique 15th Century and Earlier Thai Artisan Cuff Bracelets

Materials

White Diamond, Gold

Coomi 20 Karat Gold Luminosity Diamond Cuff Bracelet
By Coomi
Located in Secaucus, NJ
strategically set in 20-karat yellow gold to reflect light while radiating the positive energy of the wearer
Category

Antique 15th Century and Earlier Thai Artisan Cuff Bracelets

Materials

White Diamond, Gold

Sapphire Ombree Diamond South Sea Pearl Drop Earrings 1.72 Carat 18 Karat
By Harbor Diamonds
Located in New York, NY
18K White gold drop earrings featuring ombree light blue to dark sapphires weighing 1.38 carats, 20
Category

2010s American Contemporary Drop Earrings

Materials

Diamond, South Sea Pearl, Sapphire, White Gold

Pink Sapphire Ombree Diamond South Sea Pearl Drop Earrings 166 Carat 18 Karat
By Harbor Diamonds
Located in New York, NY
18K White gold drop earrings featuring pink sapphire ombreesapphires weighing 1.32 carats, 20 round
Category

2010s American Contemporary Drop Earrings

Materials

Diamond, South Sea Pearl, Pink Sapphire, 18k Gold

Diamond Ruby 1.50 Cluster Earrings Round Oval Studs Modern 18 Karat White Gold
By Hasbani Diamonds
Located in London, GB
the centre on each earring is surrounded by 10 white stunning diamonds, 20 diamonds for both, weighing
Category

2010s British Modern Stud Earrings

Materials

Aquamarine, Carnelian, Chalcedony, Citrine, Diamond, White Diamond, Emer...

20 Karat Blue Tourmaline and Diamond Earrings
By Coomi
Located in Secaucus, NJ
Affinity drop earrings set in 20K yellow gold with 10.69cts blue tourmaline and 4.86cts diamond.
Category

21st Century and Contemporary Drop Earrings

Materials

Tourmaline, White Gold

20 Karat Emerald and Diamond Sunburst Necklace
By Coomi
Located in Secaucus, NJ
20K Coomi X Muzo Sunburst Necklace with 41.29cts emerald and 7.71cts diamond
Category

21st Century and Contemporary More Necklaces

Materials

Emerald, Yellow Gold

20 Karat Emerald and Diamond Bloom Earrings
By Coomi
Located in Secaucus, NJ
1.05cts diamond
Category

21st Century and Contemporary More Earrings

Materials

Emerald, Yellow Gold

Coomi 20 Karat Gold Luminosity Diamond Front Hoop Earrings
By Coomi
Located in Secaucus, NJ
stone is strategically set in 20-karat yellow gold to reflect light while radiating the positive energy
Category

Antique 15th Century and Earlier Thai Artisan Hoop Earrings

Materials

White Diamond, Gold

Coomi 20 Karat Gold Ancient Roman Glass Diamond Bracelet
By Coomi
Located in Secaucus, NJ
millennium ago along the original Silk Road. Each piece is wrapped in 20 karat yellow gold and infused with
Category

21st Century and Contemporary Thai Artisan Link Bracelets

Materials

White Diamond, Gold

Coomi 20 Karat Gold Ancient Roman Glass Diamond Bracelet
By Coomi
Located in Secaucus, NJ
karat yellow gold and infused with diamonds. The ancient Roman glass has been textured, tempered, and
Category

21st Century and Contemporary Thai Artisan Cuff Bracelets

Materials

White Diamond, Gold

Bulgari Bvlgari 20 Karat Yellow Gold Diamond Heart Pendant
By Bulgari
Located in Sherman Oaks, CA
Baguette Diamonds Total Mass = 5.9 grams Width = 24 mm Length = 20 mm (25 mm w/ Bail) Signed "BULGARI 20K
Category

20th Century Pendant Necklaces

Materials

Diamond, 18k Gold, 22k Gold

14 Karat White Gold Sapphire/Diamond Huggies 20 Pointers
By Belfiore Jewelry
Located in Great Neck, NY
Sapphire and Diamond stones set in 14K white gold. The stones are set only on the outside of the
Category

21st Century and Contemporary American Modern Hoop Earrings

Materials

Diamond, Sapphire, White Gold, 14k Gold

14 Karat White Gold Sapphire/Diamond Huggies 20 Pointers
By Belfiore Jewelry
Located in Great Neck, NY
Sapphire and Diamond stones set in 14K white gold. The stones are set only on the outside of the
Category

21st Century and Contemporary American Modern Hoop Earrings

Materials

Diamond, Sapphire, 14k Gold, White Gold

14 Karat White Gold Sapphire/Diamond Huggies 20 Pointers
By Belfiore Jewelry
Located in Great Neck, NY
Sapphire and Diamond stones set in 14K white gold. The stones are set only on the outside of the
Category

21st Century and Contemporary American Modern Hoop Earrings

Materials

Diamond, Sapphire, 14k Gold, White Gold

.20 Carat Vintage Revival Natural Diamonds Ring 14 Karat
Located in New York, NY
Victorian Revival Deco .20ct Natural Diamonds ring. Single cut brilliant Round: 3.6mm diameter
Category

2010s American Victorian Cluster Rings

Materials

Diamond, 14k Gold, White Gold

20 Carat Diamond Platinum 18 Karat Yellow Gold Cuff Bracelet
Located in New York, NY
the same level. An amazing piece of most wearable jewelry. The approximate total diamond weight is 20
Category

2010s Contemporary Cuff Bracelets

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Yellow Diamond and Aquamarine Ring in 22 Karat Gold and 20 Karat Gold
By Pamela Farland
Located in New York, NY
stones are set in 22Karat gold and the band is 20 Karat gold and is entirely hand made by the artist in
Category

21st Century and Contemporary American Artist Cluster Rings

Materials

Aquamarine, Yellow Diamond, Gold, 22k Gold, Yellow Gold

1940s 20 Carat Aquamarine and Diamond 14 Karat Gold Ring
Located in Atlanta, GA
Details: Cut: Step Emerald Cut Color: Santa Maria Carat: 20 carats Type: Aquamarine Diamond Details
Category

Vintage 1940s American Retro Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 14k Gold

20 Karat Affinity Emerald Earrings
By Coomi
Located in Secaucus, NJ
Affinity Earrings with 2.19CTS of Diamond, and 1.38CTS of Emeralds. 2.25IN Long, set in 20K Yellow
Category

2010s Thai Dangle Earrings

Materials

Diamond, Emerald, Yellow Gold, Gold, 22k Gold

12.20 Carat Round Diamond Tennis Necklace 14 Karat Yellow Gold 20''
Located in Great Neck, NY
Natural round-brilliant cut white diamonds clean and Excellent shine. 14k yellow gold classic four
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

12.20 Carat Round Diamond Tennis Necklace 14 Karat Yellow Gold 20''
Located in Great Neck, NY
Natural round-brilliant cut white diamonds clean and Excellent shine. 14k yellow gold classic four
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

Coomi Uncensored "Bitch" Diamond Pendant Set in 20 Karat Gold
By Coomi
Located in Secaucus, NJ
"Bitch" middle finger pendant set in 20K yellow gold with 0.72cts diamond and 0.43cts rubies. Back
Category

2010s Thai Contemporary Pendant Necklaces

Materials

Diamond, Ruby, Gold

Chopard Happy Diamonds 18 Karat White Gold Pink Mother of Pearl Dial 20/7450-20
By Chopard
Located in London, GB
An 18k White Gold Happy Diamonds Ladies Wristwatch, pink mother of pearl dial with applied hour
Category

21st Century and Contemporary Wrist Watches

Materials

Diamond, Pearl, White Gold, 18k 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

5.40 Carat Natural Diamond Buttercup Necklace 14 Karat White Gold 20''
Located in Great Neck, NY
Brilliant and beautiful buttercup necklace, natural round-brilliant cut white diamonds clean and
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

5.40 Carat Natural Diamond Buttercup Necklace 14 Karat White Gold 20''
Located in Great Neck, NY
Brilliant and beautiful buttercup necklace, natural round-brilliant cut white diamonds clean and
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

12.27 Carat Round Diamond Tennis Necklace 14 Karat Yellow Gold 20''
Located in Great Neck, NY
Natural round-brilliant cut white diamonds clean and Excellent shine. 14k yellow gold classic four
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

12.27 Carat Round Diamond Tennis Necklace 14 Karat Yellow Gold 20''
Located in Great Neck, NY
Natural round-brilliant cut white diamonds clean and Excellent shine. 14k yellow gold classic four
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

.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
Category

2010s American Stud Earrings

Materials

Diamond, 14k Gold, Yellow Gold

COOMI "I Am" Diamond Pendant Set in 20-Karat Gold
By Coomi
Located in Secaucus, NJ
"I Am" pendant set in 20K yellow gold with 0.23cts diamond and black enamel. Back features stained
Category

2010s Thai Contemporary Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, 22k Gold

1.50 Carat Diamond Mini Illusion Necklace 14 Karat Yellow Gold 20''
Located in Great Neck, NY
Brilliant and beautiful mini illusion setting necklace, natural round-brilliant cut white diamonds
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

COOMI Uncensored "Censored" Diamond Pendant Set in 20 Karat Gold
By Coomi
Located in Secaucus, NJ
"Censored" circle pendant set in 20K yellow gold with 0.65cts diamond and red enamel. Back features
Category

2010s Thai Contemporary Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, 22k Gold

1.50 Carat Diamond Mini Illusion Necklace 14 Karat Yellow Gold 20''
Located in Great Neck, NY
Brilliant and beautiful mini illusion setting necklace, natural round-brilliant cut white diamonds
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

4.63 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold 20''
Located in Great Neck, NY
4.63 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold. Diamond Link 4 inch, Length 20
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

4.63 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold 20''
Located in Great Neck, NY
4.63 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold. Diamond Link 4 inch, Length 20
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

Australian Opal Pendant Set in 20 Karat Yellow Gold with Diamonds
By Coomi
Located in Secaucus, NJ
Affinity Opal Pendant Set In 20 Karat Yellow Gold with Open Close Bail and Multi-Size Blue Opals
Category

21st Century and Contemporary Thai Contemporary Pendant Necklaces

Materials

Diamond, Opal, Yellow Gold

20 Carat Blue Cabochon Sapphire & Diamond 18 Karat White Gold Ring
Located in Boca Raton, FL
Vintage blue sapphire diamond cocktail ring crafted in 18 karat white gold. The cabochon natural
Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

20 Karat Yellow Gold Ring with Patina and 0.10 Carat Diamonds
By Coomi
Located in Secaucus, NJ
Antiquity 20 Karat Yellow Gold Ring With Antique Roman Glass, Tow Gold Ball Design, and Rose-Cut
Category

21st Century and Contemporary Thai Contemporary Fashion Rings

Materials

Diamond, Yellow Gold

20 Carat Diamond Pave Cuban Link Bracelet 14 Karat in Stock
Located in Boca Raton, FL
Material: 14k Rose Gold Diamond Details: Approx. 20ctw of round cut Diamonds. Diamonds are G/H in
Category

21st Century and Contemporary American Chain Bracelets

Materials

Diamond, White Diamond, 14k Gold, Rose Gold

.20 Carat Art Deco Diamond 18 Karat White Gold Wedding Band
Located in Atlanta, GA
Ring Size: 7.25 Metal Type: 18 Karat White Gold [Hallmarked, and Tested] Weight: 2.5 grams Diamond
Category

Vintage 1930s Unknown Engagement Rings

Materials

Diamond, White Gold

4.65 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold 20''
Located in Great Neck, NY
4.65 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold. Diamond Link 4 inch, Length 20
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

4.65 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold 20''
Located in Great Neck, NY
4.65 Carats Mini Diamond Tennis Necklace Chain 14 Karat White Gold. Diamond Link 4 inch, Length 20
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

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
Category

21st Century and Contemporary Modern Band Rings

Materials

Diamond, 14k Gold, White Gold

36.50 Carats Diamonds Cuban Two-Tone Necklace Chain 14 Karats Gold 20''
Located in Great Neck, NY
36.50 Carats Total Weight Heavy Gold Cuban Necklace Chain 14 Karats Gold 20 inch, 15 mm wide
Category

2010s American Chain Necklaces

Materials

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

36.50 Carats Diamonds Cuban Two-Tone Necklace Chain 14 Karats Gold 20''
Located in Great Neck, NY
36.50 Carats Total Weight Heavy Gold Cuban Necklace Chain 14 Karats Gold 20 inch, 15 mm wide
Category

2010s American Chain Necklaces

Materials

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

20.30 Carats Diamonds Cuban Two-Tone Necklace Chain 14 Karats Gold 20''
Located in Great Neck, NY
White Gold 20 inch , 12 mm wide, Average Color I, Clarity SI, Natural Diamonds.
Category

2010s American Chain Necklaces

Materials

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

20.30 Carats Diamonds Cuban Two-Tone Necklace Chain 14 Karats Gold 20''
Located in Great Neck, NY
White Gold 20 inch , 12 mm wide, Average Color I, Clarity SI, Natural Diamonds.
Category

2010s American Chain Necklaces

Materials

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

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20 Karat Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 20 karat diamond for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and yellow gold. Find an antique version now, or shop for 22599 vintage or 10768 modern creation for a more contemporary example of these cherished accessories. You’re likely to find the perfect 20 karat 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 20 karat diamond over the years, but those made by Cartier, Van Cleef & Arpels and Tiffany & Co. are often thought to be among the most beautiful. A 20 karat diamond can make for a versatile accessory, but a selection from our variety of 27347 diamond versions can add an especially stylish touch. A round cut version of this piece has appeal, but there are also brilliant cut and oval cut versions for sale. When shopping for a 20 karat 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 Karat Diamond?

On average, a 20 karat diamond at 1stDibs sells for $3,002, while they’re typically $1 on the low end and $1,575,000 for the highest priced versions of this item.
Questions About 20 Karat Diamond
  • 1stDibs ExpertApril 5, 2022
    Yes, 20-karat gold is indeed real. Karat is a unit used to measure the purity level of a gold item. Pure gold is 24-karat while the makeup of 20-karat gold is 83.3% gold and 16.7% alloy. Shop a collection of expertly vetted 20-karat jewelry from some of the worlds top sellers on 1stDibs.