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20 Carat Round Diamond Ring

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GIA Certified 20 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA Certified 20 Carat Round Brilliant Cut Diamond Ring the main stone is an investment grade
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

Platinum .20 Carat Round Natural Diamond Half Wedding Band Ring
Located in Baltimore, MD
Platinum .20 Carat Round Natural Diamond Half Wedding Band Ring Metal: Platinum Weight: 3.17 grams
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Platinum

.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

1.42 Carat Diamond Tri Color Stackable Rings
By Harbor Diamonds
Located in New York, NY
Diamond stackable rings featuring: One Oval diamond, 0.15 carats, 20 round brilliants, 0.20 carats
Category

2010s American Contemporary Band Rings

Materials

Diamond, Mixed Metal

Platinum 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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Gold Diamond Enhancer Wedding Band, 14k Round Brilliant .20 Carat Guard Ring
Located in Greensboro, NC
Information: Natural Diamonds Total Carats: .20ctw Cut: Round Brilliant Color: G - H Clarity: SI1 Center
Category

21st Century and Contemporary Unknown Wedding Rings

Materials

Diamond, 14k Gold, White Gold

14 Karat Rose Gold .20 Carat Round Natural Diamond Half Wedding Band Ring
Located in Baltimore, MD
14 Karat Rose Gold .20 Carat Round Natural Diamond Half Wedding Band Ring Metal: 14k rose gold
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Rose Gold

1.30 Carat Round Brilliant Diamond Platinum Engagement Ring
Located in Sherman Oaks, CA
stone Diamond weight: 1.30 carats Side Stones are Approximately .20 carats each (.40 Total), SI Clarity
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Vivid Diamonds 1.89 Carat Diamond and Emerald Snake Ring
By Vivid Diamonds
Located in Miami, FL
diamond weighing 0.47 carats, F color, VS-SI clarity, 90 round brilliant cut diamonds weighing
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

.20 Carat Diamond 14k Yellow Gold Slide Band Ring
Located in Stamford, CT
1970's modern design diamond slide 14k yellow gold ring that offers a unique and modern twist on a
Category

Late 20th Century Fashion Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Tiffany & Co. Platinum True Round Diamond Engagement Ring .20 ct EVS1
By Tiffany & Co.
Located in New York, NY
setting showcasing the iconic T from the True collection featuring a round brilliant diamond center
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

10K Yellow Gold 1/20 Carat Diamond Triple Heart Diamond Ring
Located in New York, NY
This fascinating Triple Heart Diamond Ring will speak volumes about your love. This shimmering ring
Category

21st Century and Contemporary Indian Contemporary Cocktail Rings

Materials

Diamond, White Diamond, 10k Gold, Yellow Gold

Natural White Round Diamond .20 Carat TW Platinum Wedding Band
Located in New York, NY
RareGemWorld's classic diamond band. Mounted in a beautiful Platinum setting with natural round
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, White Diamond, Platinum

1.76 Carat Round Diamond Platinum Eternity Wedding Band Ring
Located in Stamford, CT
1.76 carat round diamonds in an eternity platinum common prong wedding band setting. 20 round
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Vivid Diamonds GIA Certified 5.25 Carat Radiant Cut Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
certified radiant cut diamond weighing 5.25 carats, J color, SI1 clarity, with 20 round brilliant cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Vivid Diamonds AGL Certified 21.19 Carat Sapphire and Diamond Ballerina Ring
By Vivid Diamonds
Located in Miami, FL
certified blue oval Sapphire weighing 21.19 carats, surrounded by 20 round brilliant cut diamonds and 50
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Sapphire, Platinum

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

14K Yellow Gold 1/20 Carat Dual Heart Diamond Ring
Located in New York, NY
. This captivating ring showcases 2 gorgeous round cut accented diamonds, beautifully prong set and
Category

21st Century and Contemporary Indian Contemporary Cocktail Rings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

.44 Carat Baguette Round Diamond Platinum Wedding Band Ring
Located in Stamford, CT
round diamonds approx. total weight: .24 F, VS 2 baguette diamonds approx. total weight: .20 F, VS Size
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

8.23 Carat Round Tanzanite Square Shank 5.02 Carat Diamond Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
carat Round Tanzanite - 12.5 mm Side Stone Diamonds: 20 pieces VS1-VS2 Clarity, F-G Color Baguette
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Tanzanite, 18k Gold

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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

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
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose 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

0.62 Carat Round Brilliant Diamond Engagement Ring in 18 Carat White Gold
Located in Hamilton, AU
0.45 carat round brilliant cut diamond raised up from an elegant band in a six claw setting, flanked by
Category

20th Century Australian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Mauboussin Paris 20 Carat Amethyst and Diamond Ring
By Mauboussin
Located in Bay Harbor Islands, FL
approximately 20 carats and is flanked by triangular shaped panels pave set with 68 round brilliant cut diamonds
Category

Late 20th Century French Modern Cocktail Rings

Materials

Amethyst, Diamond, 18k Gold, Yellow Gold

Illuminate Round Ring 1/20 Carat TW by Rupali Adani Fine Jewellery
Located in Dubai, DU
: Round | Average Diamond Color : FGH | Average Diamond Clarity : SI | Diamond Certificate : Diamonds
Category

2010s Emirian Fashion Rings

Materials

Diamond, 18k Gold, White Gold

3.06 Carat Round Cut Black Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
3.06 Carat Round Cut Black Diamond White Gold Bridal Ring! Gorgeous Black Diamond Ring that can
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

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

1.03 Carat Round Brilliant Diamond Ring 18 Karat Yellow Gold
Located in BEVERLY HILLS, CA
. Complimented by 20 round brilliant diamonds, 0.18 carats. Approximately F/G color and VVS2/VS1 clarity. 18
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

Natural Pink Round and White Diamond .20 Carat TW Gold Wedding Band
Located in New York, NY
natural round pink diamond melee complimented by natural round white diamond melee. This band is
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, White Diamond, Pink Diamond, Brown Diamond, Gold, 14k Gold, Ros...

Diamond Channel Band, White Gold, .20 Carat Ring, Wedding Band, Stackable Band
By Five Star Jewelry
Located in Austin, TX
Weight: .20 Carats Diamond Shape: Round Brilliant Diamond Clarity: Ring Size: 5 (Can be ordered in
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Gold, 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

Round Diamond Halo Pave Twist Band Engagement Ring 1.50 Carat
Located in San Diego, CA
Halo Diamond Engagement Ring Metal: 18Kt White Gold Size: 7 - sizable Total Carat Weight: 1.50
Category

2010s Bridal Rings

Materials

Diamond, 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

Roman Malakov 2.01 Carat Round Diamond Solitaire Half-Eternity Engagement Ring
By Roman Malakov
Located in New York, NY
Clarity. 20 accent brilliant round diamonds weighing 0.51 carats total. Made with 18K White Gold. Size 7
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

2.06 Carat Certified Round Brilliant Diamond Platinum Vintage Engagement Ring
Located in Hamilton, AU
carat round brilliant cut diamond. This exceptional diamond is beautifully designed in a minimalistic
Category

21st Century and Contemporary Australian Modern Engagement Rings

Materials

Diamond, Platinum

Diamond Twist Satin Finish Band in 14k White Gold .20 Carat Stackable Ring
By Five Star Jewelry
Located in Austin, TX
ring is that it is two different designs intertwined- a round brilliant diamond band with a satin
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, 14k Gold, White Gold

GIA Certified 2.3 Carat Brownish Greenish Yellow Diamond Round Double Halo Ring
By Gad & Co.
Located in Miami, FL
: #6155854494 Diamond Side Stones: - 20 Round cut pink diamonds, 0.31 CTTW - 42 Round cut white diamonds, 0.45
Category

2010s Art Deco Cluster Rings

Materials

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

Gia 3.01 Carat J/Vs2 Round Diamond 18K Gold Diamond Engagement Ring W. Halo
By Sebastian Bernard
Located in Los Angeles, CA
A beautiful GIA Certified Round Brilliant J/VS2 Round Brilliant Diamond set in center of a
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 18k 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
Category

Late 20th Century Unknown Fashion Rings

Materials

White Diamond, Kunzite, 14k 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

Peter Suchy .96 Carat Round Diamond Halo Rose Gold Solitaire Engagement Ring
Located in Stamford, CT
, approx. .45ct 20 round pink diamonds SI, approx. .15ct Size 6.5 and sizable 18k Stamped: 750 3.4 grams
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold, Rose Gold, Gold

18K Yellow Gold apx 19/20 CTW round Diamond Engagement Ring SZ:8.5 7.86g
Located in South Bend, IN
The combination of 18K yellow gold and approximately 19/20 carats of round diamonds must make for a
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold

1.03 Carat Round Brilliant Cut Diamond 18 White Carat Gold Halo Cluster Ring
Located in Hamilton, AU
edge band with a sparkling centrepiece 1.03 carat ADGL certified round brilliant cut champagne diamond
Category

21st Century and Contemporary Australian Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold, Gold

0.65 Carat Round Brilliant Diamond Vintage Solitaire Ring in 18 Carat White Gold
Located in Hamilton, AU
Jessica Ring Gem Details The round brilliant cut diamond has an estimated total of 0.65 carats, is F
Category

21st Century and Contemporary Australian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1.00 Carat Round Brilliant Diamond 18 Karat White Gold Engagement Ring
Located in Sherman Oaks, CA
One electronically tested 18KT white gold ladies cast diamond unity ring. Condition is good
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold

2.65 Carat Natural Diamond Eternity Band Ring G SI 18 Karat White Gold 20
Located in New York, NY
2.65 Carat Natural Diamond Eternity Ring G SI 18K White Gold 100% Natural Diamonds, Not Enhanced
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, 14k Gold, White Gold

14 Carat Yellow and White Gold 1.00 Carat Round Brilliant Diamond Cluster Ring
Located in Hamilton, AU
Diamond Details Diamonds are estimated to total 1.06 carats. The centre round brilliant cut diamond has an
Category

20th Century Unknown Modern Cluster Rings

Materials

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

2.65 Carat Natural Diamond Eternity Band Ring G SI 18 Karat White Gold 20
Located in New York, NY
2.65 Carat Natural Diamond Eternity Ring G SI 18K White Gold 100% Natural Diamonds, Not Enhanced
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, 18k Gold, White Gold

Platinum Engagement Ring with 1.03 Carat Round and 0.20 Ct Baguette Diamonds
By Diana M. Jewels
Located in New York, NY
Platinum engagement ring features 1.03 carat of round diamond and .20 ct baguette on the sides.
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Ruby and Diamond Ring, 14 Karat White Gold Round Cut .81 Carat Engagement
Located in Greensboro, NC
- Treatment: Heating Color: Red Cut: Round Carat: 0.59ct Natural Diamonds - Clarity: SI1 - SI2 Color: G - H
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

7 Carat Round Colombian Emerald and Diamond 18 Karat Gold Ring, Estate, Unisex
Located in New York, NY
enhancement. 18 K Gold 20 gm Diamonds: approximate 4.2 Carat , Round and Baguette Baguette diamonds are set
Category

Vintage 1980s Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

Tacori 1.00 Carat GIA Round Diamond in 18 Karat White Gold Engagement Ring
By Tacori
Located in Austin, TX
TACORI 18K WHITE GOLD ENGAGEMENT RING with a 1.00 CARAT GIA CERTIFIED ROUND BRILLIANT DIAMOND! This
Category

21st Century and Contemporary American Artisan Engagement Rings

Materials

Diamond, White Diamond, White Gold, 18k Gold

20 Carat Blue Cabochon Sapphire & Diamond 18 Karat White Gold Ring
Located in Boca Raton, FL
blue sapphire weighs approximately 20 carats and is surrounded by 22 round brilliant cut diamonds
Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

6.19 Carat Pear Tanzanite with 0.86 Carats Round Diamond Platinum Cocktail Ring
Located in Hamilton, AU
tanzanite, encompassed by 0.78 carats of sparkling round brilliant cut diamonds. There is a secret diamond
Category

21st Century and Contemporary Australian Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

Blue Sapphire and Diamond Heart Ring
By Diamond Scene New York
Located in New York, NY
A wonderful gift! 1.00 of fine blue sapphires set on the band .20 carats of white round
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Blue Sapphire

Contemporary 18 Carat Yellow Gold Round Brilliant Diamond Flower Cluster Ring
Located in Hamilton, AU
Calla Ring Gem Details The seven round brilliant cut diamonds have an estimated weight of 0.56 carats
Category

21st Century and Contemporary Australian Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

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20 Carat Round Diamond Ring For Sale on 1stDibs

Surely you’ll find the exact 20 carat round diamond ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from gold, white gold and yellow gold — can elevate any look. You can easily find a 2291 antique edition and 2365 modern creations to choose from as well. If you’re looking for a 20 carat round diamond ring 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. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 carat and 1 carat carat weights, specifically, are sought with frequency. A 20 carat round diamond ring from LB Exclusive, Roshe Jewels and Tiffany & Co. — 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 oval cut cut and brilliant cut cut versions available here, too. When shopping for a 20 carat round diamond ring, 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 Round Diamond Ring?

The price for a 20 carat round diamond ring starts at $1 and tops out at $2,000,000 with these rings, on average, selling for $2,308.

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.