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Exceptional GIA Certified Ct 20, 00 Fancy Intense Yellow Diamond
Located in Massafra, IT
An incredible and rare big natural fancy intense yellow diamond, GIA certified 20,00 carats, VS2
Category

21st Century and Contemporary Pendant Necklaces

Materials

Yellow Diamond

Amazing GIA Certified Ct 20, 17 IF/VVS1 of Diamonds
Located in Massafra, IT
So rare and magnificent GIA certificated ct 10,10+10,07 of diamonds IF/VVS1. Investment diamonds
Category

21st Century and Contemporary More Jewelry

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

GIA Certified 20ct Zambian Emerald & 15ct Diamond Necklace Earring Suite 18KWG
Located in New York, NY
GIA certified 20 ct Zambian Emerald & 15 ct Diamond Necklace and Earring Bridal Suite 18KW Gold
Category

2010s Drop Necklaces

Materials

Diamond, Emerald, 18k Gold

Vintage Retro Large 20ct GIA Rectangular Aquamarine & Diamond Gold Cocktail Ring
Located in Montclair, NJ
original GIA certification for the aquamarine, and is 100% ready to wear. This magnificent ring will surely
Category

21st Century and Contemporary Retro Cocktail Rings

Materials

Aquamarine, Diamond, Gold

Kieselstein Cord 18k Gold Large GIA 20ct Bezel Rubellite Tourmaline Diamond Ring
By KIESELSTEIN-CORD
Located in Montclair, NJ
center. The gorgeous tourmaline weighs over 20 carats and is certified by GIA as having very fine and
Category

1990s Cocktail Rings

Materials

Diamond, Tourmaline, 18k Gold

20 Ct Fancy Intense Yellow Diamond GIA Radiant Cut Three Stone Engagement Ring
By SCARSELLI
Located in New York, NY
A GIA certified, internally flawless intense yellow diamond with excellent symmetry and no
Category

2010s North American Contemporary Engagement Rings

Materials

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

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

14kt Yellow Gold Triple Rope Round Brilliant Diamond Bracelet, 10 Diamonds .20ct
Located in Rancho Santa Fe, CA
diamonds of approximately .20cttw. The diamonds are g color, SI clarity, and proportioned well. The
Category

1990s Unknown Modern Link Bracelets

Materials

Diamond, 14k Gold, Yellow Gold

14kt Yellow Gold .15cttw Diamond .20ct Ruby Hoops Friction Posts 25mm, 3mm Wide
Located in Rancho Santa Fe, CA
Timeless 14kt yellow gold hoops with 14 bead set round brilliant diamonds of approximately .15cttw
Category

1990s Unknown Modern Hoop Earrings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Illuminate Round Necklace 1/20 CT TW By Rupali Adani Fine Jewellery
Located in Dubai, DU
"Composition Stone type : Natural Diamond, Ethically sourced & Conflict free. | Metal : 18K White
Category

2010s Emirian Pendant Necklaces

Materials

Diamond, 18k Gold

Illuminate Round Ring 1/20 CT TW By Rupali Adani Fine Jewellery
Located in Dubai, DU
"Composition Stone type : Natural Diamond, Ethically sourced & Conflict free. | Metal : 18K White
Category

2010s Emirian Engagement Rings

Materials

Diamond, 18k Gold

Illuminate Round Necklace 1/20ct TW by Rupali Adani Fine Jewellery
Located in Dubai, DU
"Composition Stone type : Natural Diamond, Ethically sourced & Conflict free. | Metal : 18K White
Category

2010s Emirian Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Platinum GIA F/VS2 Diamond Halo Ring
Located in San Francisco, CA
graded by the GIA as F/VS2 with an Excellent Cut Grade, this stone is about as fine as diamonds come
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Platinum

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

Alexander Important GIA Certified 23.01ct Cushion Fancy Yellow VS1 Diamond
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Important and rare 23ct Fancy Yellow Canary Diamond, GIA certified. Unique and rare as it is a
Category

2010s Modern Loose Gemstones

Materials

Diamond, Yellow Diamond

GIA Certified Fancy Intense Pink Diamond Double Halo Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
Side Diamonds weighing approximately 0.56 ct total weight, D-F in color, VVS1-VS2 in clarity. 20
Category

2010s Italian Modern Engagement Rings

Materials

Pink Diamond, White Diamond, Diamond, Platinum, Rose Gold, 18k Gold

GIA 1.00 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 9.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA 1.48 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 7.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.01 Carat Light Pink Diamond Ring VS2 Clarity
Located in Kowloon, HK
- 0.063 ct ➛ Side rose cut diamonds - 20 pcs - 0.969 ct ♦ GROSS WEIGHT: 6.79 grams ➛ Metal Type: 18k
Category

2010s Asian Wedding Rings

Materials

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

GIA Certified 1.74 Carat Cushion Cut Diamond Engagement Ring
By Natkina
Located in Montreux, CH
-RND-1,74 ct Colour E Clarity VS2 GIA Report 1249511976 Diamond 20-RND -0.1 Weight grams 1.2 Size US
Category

2010s Swiss Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold

GIA Certified 1.21 Carat Faint Pink Diamond Ring & Pendant Convertible
Located in Kowloon, HK
pcs - 0.382 cts ➛ Side Pink diamond - 20 pcs - 0.185 ct ➛ Side marquise diamonds - 12 pcs - 0.715
Category

2010s Asian Wedding Rings

Materials

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

0.70 Carat Light Green Diamond Ring I1 Clarity GIA Certified
Located in Kowloon, HK
SIDE STONE DETAILS ➛ Side Marquise diamonds -10 pcs - 0.535 ct ➛ Side White Diamonds- 128 pcs - 0.515
Category

2010s Asian Wedding Rings

Materials

Pink Diamond, White Diamond, Diamond, White Gold, 18k 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 Certified .53 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Measurements: 5.12mm x 4.98mm x 3.22mm Side Diamond Details: Weight: .20ct, total Cut: Old European brilliant
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.06 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Measurements: 6.81mm x 6.63mm x 3.91mm Side Diamond Details: Weight: .20ct, total Cut: Old European brilliant
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.13 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Measurements: 6.06mm x 5.83mm x 4.40mm Side Diamond Details: Weight: .20ct, total Cut: Old European brilliant
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.02 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Measurements: 6.43mm x 6.22mm x 4.11mm Side Diamond Details: Weight: .20ct, total Cut: Old European brilliant
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

2.04 Carat Light Green Yellow Diamond Ring I1 Clarity GIA Certified
Located in Kowloon, HK
certified ♦ SIDE STONE DETAILS ➛ Side white diamonds - 54 pcs - 0.42 ct ➛ Side pink diamonds - 20 pcs
Category

2010s Asian Engagement Rings

Materials

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

0.62 Carat Very Light Pink Diamond Ring SI2 Clarity GIA Certified
Located in Kowloon, HK
♦ SIDE STONE DETAILS ➛ Side White Diamonds- 20 pcs - 0.131 ct ➛ Side Pink Diamonds - 22 pcs- 0.106
Category

2010s Asian Engagement Rings

Materials

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

Diana M. Rectangular Cushion Brilliant Diamond Ring 20cts G SI1 GIA
By Diana M. Jewels
Located in New York, NY
Spectacular cushion brilliant diamond ring rectangular 20ct G SI1 with 1.20cts tapered baguettes
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond

GIA Certified 1.20 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.2 grams Center Diamond
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified .82 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.15 Carat Light Pinkish Brown Diamond Ring & Pendant Convertible
Located in Kowloon, HK
- 0.06 ct ➛ Side pear shape diamonds - 20 pcs - 1.357 cts ♦ GROSS WEIGHT: 5.812 grams ➛ Metal Type
Category

2010s Asian Fashion Rings

Materials

Brown Diamond, Pink Diamond, White Diamond, Diamond, White Gold, 18k Gold

GIA Certified 1.51 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond
Category

Vintage 1910s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.27 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 8 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.08 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 9 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond
Category

Vintage 1910s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.45 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.05 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.2 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA 1.21 Carat European Cut Diamond Ring F/VS2 Platinum
Located in New York, NY
1.01ct. GIA Old European cut diamond F-color Vs-2 clarity. (Please see certificate) Side
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, White Gold

GIA Certified .72 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.21 Carat Very Light Green Diamond Ring & Pendant Convertible
Located in Kowloon, HK
- 0.565 ct ➛ Side Pink diamonds - 20 pcs- 0.14 ct ♦ GROSS WEIGHT: 5.55 grams ➛ Metal Type: 18k White
Category

2010s Asian Wedding Rings

Materials

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

GIA Certified .82 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.1 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified .96 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Center Diamond Details: GIA LAB REPORT #:6224792240 Weight: .96ct Cut: Old Mine Brilliant (Antique
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Platinum

Platinum GIA 1.51 Carat Diamond Brilliant Engagement Ring with Emerald Accents
Located in Atlanta, GA
grams Center Diamond Details: GIA Report#: 62372111414 Weight: 1.51ct total weight Cut: Old European
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Certified Russian Emerald & Burma Sapphire White & Yellow Diamond Joker Pin
Located in New York, NY
GIA Certified Russian Emerald & Burma Sapphire White & Yellow Diamond Joker Pin GIA report # for
Category

1990s Brooches

Materials

Diamond, Ruby, Yellow Diamond, Emerald, Sapphire, 18k Gold

Gia 3.01 Carat J/Vs2 Round Diamond 18K Gold Diamond Engagement Ring W. Halo
By Sebastian Bernard
Located in Los Angeles, CA
Ct. diamonds on the side. Diamond specs: Center stone: 3.01 Ct GIA Certified J/VS2 Round Brilliant
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 18k Gold

Art Deco Style Platinum 1.04 F, SI1 GIA Diamond & Sapphire Ring
Located in New York, NY
The art deco style with an oval 1.04 CTS GIA F, SI1 diamond and French-Cut sapphire Ring exudes
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 1.36 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.5 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

25 Carat Emerald Cut Diamond Engagement Ring GIA Certified E VVS2
Located in New York, NY
VISERION 25 CARAT MEN’s DIAMOND CHANDELIER RING 18K WHITE GOLD 5 CT EMERALD CUT E COLOR VVS2
Category

2010s American Engagement Rings

Materials

Diamond, 14k Gold, 18k Gold, White Gold

GIA Certified 2.06 Carat Edwardian Diamond Platinum /14 Karat Engagement Ring
Located in Atlanta, GA
Center Diamond Details: GIA REPORT #: 2417916474 Weight: 2.06ct Cut: Old Mine Brilliant Color: N Clarity
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3.80 Carat Natural Green Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Art Deco 1930's, Sapphire and Diamond engagement ring. GIA certified oval, natural green sapphire
Category

Early 20th Century Unknown Engagement Rings

Materials

Diamond, Sapphire, Green Sapphire, Platinum

0.83 Carat Fancy Light Pinkish Brown Diamond Ring VS1 Clarity GIA Certified
Located in Kowloon, HK
certified ♦ SIDE STONE DETAILS ➛ Side marquise diamonds - 12 pcs- 0.491 ct ➛ Side Pink diamonds - 20
Category

2010s Asian Engagement Rings

Materials

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

GIA Certified 1 Carat Emerald Cut Diamond 18k White Gold Ring
By Antinori Fine Jewels
Located in Rome, IT
an exquisite symbol of love and commitment: the 1.05 ct total weight Emerald Cut Diamond Engagement
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

GIA Natural Corundum Sapphire, Round and Baguette Diamond Yellow Gold Ring
Located in Miami, FL
Round Brilliant Cut Diamonds 20 Baguette Diamonds Diamond Carat Weight: approx. 2 ct Diamond Color: G
Category

Early 2000s Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold, Yellow Gold

GIA Certified 1.31 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Diamond Details: GIA Report Number: 5222862522 Weight: 1.31ct total weight Cut: Old European brilliant
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 6.13 Carats Colorless Sapphire Diamond 18 K Gold Ring
Located in Weston, MA
encircled by 20 D color round diamonds, which are perfectly arranged in a double circle to enhance the
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Sapphire, Gold, 18k Gold

Alexander GIA 13.18ct Emerald with Diamond Three Stone Halo Ring 18 Karat Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
20ct stone 13.18 carat emerald cut emerald, GIA certified F2. 2 trapezoid cut diamonds, 0.79 carats
Category

21st Century and Contemporary American Contemporary Three-Stone Rings

Materials

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

Marvelous 18k Yellow Gold Ring w/ 1.31 ct Natural Diamonds GIA Certificate
Located in רמת גן, IL
6391669864 20 diamonds side stones of total: 0.3 ct. cut: princess and baguette color: D-F clarity: VVS1-VS2
Category

2010s Israeli Cluster Rings

Materials

Diamond, 18k Gold, Yellow Gold

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20ct Diamond Gia For Sale on 1stDibs

You are likely to find exactly the 20ct diamond gia you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of gold, 18k gold and white gold, this item was constructed with great care. Find an antique version now, or shop for 84 vintage or 90 modern creation for a more contemporary example of these cherished accessories. Finding the perfect 20ct diamond gia may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. A 20ct diamond gia from Peter Suchy, Tiffany & Co. and Antinori Fine Jewels — each of whom created a beautiful version of this treasured accessory — is worth considering. See these pages for a round cut iteration of this accessory, while there are also old european cut cut and oval cut cut versions available here, too. When shopping for a 20ct diamond gia, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 20ct Diamond Gia?

On average, a 20ct diamond gia at 1stDibs sells for $7,890, while they’re typically $1 on the low end and $2,625,000 for the highest priced versions of this item.