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20 Carat Diamond Oval

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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

20 Carat Blue Sapphire Ring
By Diamond Scene New York
Located in New York, NY
An INCREDIBLE Sapphire! 20.07 carat oval “Royal” Vivid Blue center Ceylon sapphire. 1.32 carat
Category

21st Century and Contemporary Cocktail Rings

Materials

Blue Sapphire, Platinum

20 Carat Oval Cut Diamond Engagement Ring GIA Certified FVOP VS2
Located in New York, NY
RHAEGAL 20 CARAT MEN’S PINK DIAMOND CHANDELIER ENGAGEMENT RING 14K WHITE GOLD BY MIKE NEKTA NYC
Category

2010s American Engagement Rings

Materials

Diamond, 14k Gold, 18k Gold, White 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

Platinum Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Platinum Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

18K Sapphire Diamond Brooch 20 carats
Located in North Hollywood, CA
This 18K Sapphire Diamond brooch is unique as it has over 20 carats of Sapphires. These Sapphires
Category

Early 2000s North American Contemporary Brooches

Materials

Diamond, Sapphire, 18k Gold

18K Sapphire Diamond Brooch 20 carats
18K Sapphire Diamond Brooch 20 carats
Free Shipping
H 1.75 in W 2 in
Roberto Coin .20 Carat Diamond Sapphire Ruby Yellow Gold Oval Link Necklace
By Roberto Coin
Located in Stamford, CT
yellow gold oval links alternate in size. The toggle clasp is adorned with 14 round diamonds and 2
Category

21st Century and Contemporary Link Necklaces

Materials

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

Vivid Diamonds AGL Certified 10.66 Carat Ruby and Diamond Earrings
By Vivid Diamonds
Located in Miami, FL
oval cut rubies weighing 10.66 carats total accented by 20 round brilliant cut diamonds weighing
Category

21st Century and Contemporary Unknown Modern Stud Earrings

Materials

Diamond, Ruby, 18k Gold, 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

Oval Diamond Ring, White Gold, .72 Carat Diamond Oval Halo Engagement Ring
By Five Star Jewelry
Located in Austin, TX
Side Diamond Weight: .20 Carats Main Diamond: .52 Carats Main Diamond Shape: Oval Ring Size: 6 Stone
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Oval Horizontal Diamond Eternity Band 1.45 Total Carat
By Daniella Design
Located in Cedarhurst, NY
This Oval Diamond Eternity Band has 20 Diamonds, set Horizontal. The Diamonds have a Total Carat
Category

2010s American Wedding Rings

Materials

Diamond, 18k Gold

Art Deco Era 20 Carat Oval-Cut Ceylon Sapphire and Old-Euro Cut Diamond Bracelet
By Bucherer
Located in Miami, FL
Bracelet: Platinum/18K, 20+ Carat Oval-Cut Blue Sapphire, 14 Princess-Cut Sapphires, 166 Old-European Cut
Category

Early 20th Century Art Deco More Bracelets

Materials

Diamond, White Diamond, Sapphire, Gold, 18k Gold, White Gold, Platinum

20 Carats Blue Sapphire Oval Cabs Gold Diamonds Pear Shape Jade Drops Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
6x8 mm and weighing 20 Carats set together in 14 Kt white gold with 2 small diamonds in the center
Category

2010s Thai Contemporary Dangle Earrings

Materials

Diamond, Jade, Blue Sapphire, Gold, 14k Gold, White Gold

20 Carats Blue Sapphire Oval Cabs Gold Diamonds Pear Shape Jade Drops Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
6x8 mm and weighing 20 Carats set together in 14 Kt white gold with 2 small diamonds in the center
Category

2010s Thai Contemporary Dangle Earrings

Materials

Diamond, Jade, Blue Sapphire, Gold, 14k Gold, White Gold

1-1/20 ct. Oval Sapphire and Diamond Accent Sterling Silver Pendant Necklace
By Affinity Designs LLC
Located in New York, NY
oval-cut sapphire accented by sparkling round white diamonds with a sterling silver cable chain. The
Category

2010s Asian Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, Sterling Silver

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

20 Carat Natural Oval Citrine Cocktail Ring in 14 Karat Yellow Gold, Estate
Located in New York, NY
Approximately 20 Carat Natural Oval Citrine Cocktail Ring in 14 Karat Yellow Gold, Estate This
Category

2010s Cocktail Rings

Materials

Citrine, 14k Gold, Yellow Gold

20 Carats Blue Sapphire Oval Cabs Gold Diamonds Pear Shape Jade Drops Earrings
By Tutti Frutti Jewellery
Located in Bangkok, TH
6x8 mm and weighing 20 Carats set together in 14 Kt white gold with 2 small diamonds in the center
Category

2010s Thai Contemporary Dangle Earrings

Materials

Diamond, Jade, Blue Sapphire, Gold, 14k Gold, White Gold

20 Carat Natural Oval Citrine Cocktail Ring in 14 Karat Yellow Gold, Estate
Located in New York, NY
Approximately 20 Carat Natural Long Oval Checkerboard Citrine Cocktail Ring in 14 Karat Yellow
Category

2010s Cocktail Rings

Materials

Citrine, 14k Gold, Yellow Gold

Diamond Ruby 1.50 Cluster Earrings Round Oval Studs Modern 18 Karat White Gold
By Hasbani Diamonds
Located in London, GB
Elegant and striking 1.60 Carat total diamond and ruby Cluster earrings, The radiant oval ruby in
Category

2010s British Modern Stud Earrings

Materials

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

18 Karat White Gold Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

14 Karat Yellow gold Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14 Karat Rose Gold Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18 Karat Rose Gold Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

14 Karat Yellow Gold Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

18 Karat Yellow Gold Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

18 Karat Rose Gold Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

14 Karat White Gold Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

14 Karat Rose gold Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18 Karat White Gold Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

1.50 Carat Oval Aquamarine Diamond Halo Gold Engagement Ring
Located in Stamford, CT
that dances with every movement. 1 oval blue aqua, VS approx. 1.50cts 20 single cut diamonds, H-I VS
Category

Mid-20th Century Engagement Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, White Gold

5.96 Carat Oval Cut Opal Diamond Yellow Gold Ring
By DGI
Located in Los Angeles, CA
The beautiful Opal with its striking flashes of color weighs 5.22 carats. It is surrounded by 20
Category

2010s American Contemporary Cocktail Rings

Materials

Opal, Diamond, Yellow Gold, 14k Gold

4.27 Carat Oval Cut Tanzanite Diamond White Gold Ring
By Roshe Jewels
Located in Los Angeles, CA
This gorgeous Tanzanite Diamond Ring has a 3.63 Carat Oval Cut Tanzanite as its center stone and
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Tanzanite, Diamond, 14k Gold, White Gold

14 Karat White Gold Oval Eternity Diamond Ring '3 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 22 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

Platinum Oval Green Emerald and Diamond Ring 'Center- 0.93 Carat'
Located in San Francisco, CA
This elegant platinum ring features a 0.93-carat Oval shape Green Emerald set in four prongs Lucida
Category

21st Century and Contemporary American More Rings

Materials

Diamond, Emerald, Platinum

Yellow Gold Sapphire Diamond Necklace 20" - 10k Oval 1.55ct Flower Halo-Inspired
Located in Greensboro, NC
: Heating Carat(s): 1.55ct Cut: Oval Color: Blue Natural Diamonds Cut: Single Stone Note: (four small
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, 10k Gold, Yellow Gold

1.50 Carat Oval Diamond Halo Ring total weight
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
14k white gold ladies diamond ring containing 1 oval cut diamond weighing 1.00cts. and 20 round
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 14k Gold

GIA 27.58 Carat Oval Rubellite Cocktail Ring with Diamonds in Platinum
Located in La Jolla, CA
GIA Certified 27.58 Carat Oval Rubellite Ring with Diamonds in Platinum Rubellite and Diamond Ring
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Rubelite, Platinum

20, 88 carats aquamarine ring in platinum
Located in PARIS, FR
Stones: Aquamarine of 20.88 cts, 10 diamonds: 1.28 cts Material: Platinum Dimensions: 2.2cm x 1.4cm
Category

Early 2000s Fashion Rings

Materials

Aquamarine, Diamond, Platinum

14 Karat Yellow Gold Oval Yellow Diamonds Eternity Ring '4. Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Yellow Diamonds in a total
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

Natural No Heat Ceylon 20 Carat Sapphire Diamond Ring
Located in Bal Harbour, FL
weighs 20.13 carats and is certified by both the GRS and the AIGS to be of Ceylon (Sri Lanka) origin and
Category

2010s American Cluster Rings

Materials

White Diamond, Blue Sapphire, Platinum

14 Karat Yellow Gold Oval Yellow Diamonds Eternity Ring '5. Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Yellow Diamonds in a total
Category

21st Century and Contemporary American Band Rings

Materials

Yellow Diamond, Yellow Gold

Vintage 18 Carat Oval Patroke Kunzite and Diamond Pendant Necklace
Located in Montreal, QC
. Centering a Hand set securely nestled Oval Patroke Kunzite, weighing approx. 18 Carats, accented by Diamonds
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Kunzite

6.47 Carat Oval Flawless Tanzanite and 1.51 Carat Diamond Platinum Cocktail Ring
Located in Hamilton, AU
Forged in Platinum is this charming halo cluster ring featuring an enchanting oval 6.47 carat
Category

21st Century and Contemporary Australian Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

Huge Maderia Mixed Cut Citrine 20 Plus Carat Diamond Surround
Located in North Hollywood, CA
Citrine and a large oval Madeira Citrine drop of over 20 carats with a Diamond surround. This large
Category

2010s Brazilian Modern Drop Necklaces

Materials

Citrine, White Diamond, 18k Gold

1.50 Carat Natural Oval-Cut Sapphire & 0.55 Carat Diamond Ring in 14K White Gold
By Shlomit Rogel
Located in Ramatgan, IL
1.50 Carat Natural Oval-Cut Sapphire & 0.55 Carat Diamond Ring in 14K White Gold A unique
Category

2010s Israeli Art Nouveau Engagement Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

AIG Certified 3.69 Carat Oval Peridot and 1.98 Carat Diamond Cocktail Ring
Located in Crema, Cremona
shipped together with the ring. 1 natural peridot: 3.69 carats, oval faceted, transparent. 20 natural
Category

21st Century and Contemporary Modern Cocktail Rings

Materials

Diamond, Peridot, 18k Gold, White Gold

7.00 Carat Multi-Colored Oval Sapphire Round Diamond Gold Tennis Bracelet
Located in Stamford, CT
bracelet is constructed of 14k yellow gold and measures at 7.25cts. 20 oval multi-color genuine sapphires
Category

Late 20th Century Tennis Bracelets

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold, Gold

4.21 Carat Oval Cut Opal Diamond 14 Karat Yellow Gold Ring
By Roshe Jewels
Located in Los Angeles, CA
. The Opal is surrounded by 20 Round Cut Diamonds that weigh 0.56 carats. The total carat weight of
Category

21st Century and Contemporary American Victorian Cocktail Rings

Materials

Opal, Diamond, 14k Gold, Yellow Gold

14K Yellow Gold Petite 0.90-Carat Oval Shape GIA Certified Diamond Ring
Located in San Francisco, CA
This petite 14k yellow gold ring features twenty (20) brilliant round diamonds Micro-Prong set on a
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Important Emerald Pendant Necklace With Diamonds 20 Carats 18K White Gold
Located in Laguna Niguel, CA
Carats Diamonds = 10.40 Carats Metal: 18K White Gold Length: 16 Inches
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

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

Contemporary 4.38 Carat Oval Orange Pink Tourmaline & Diamond 18 Carat Gold Ring
Located in Hamilton, AU
stunning oval cut 4.38-carat bright orangish-pink tourmaline and is set with a scalloped border of
Category

21st Century and Contemporary Australian Contemporary Engagement Rings

Materials

Tourmaline, Diamond, White Gold, Rose Gold, 18k Gold, Gold

Ruby 1.29 Ct Cluster Pendant 18 Kt White Gold Round Brilliant 0.60 Carat Diamond
By Hasbani Diamonds
Located in London, GB
brilliant cut white stunning diamonds weighing a total of 0.60 carat color G/H clarity SI, the ruby weighs
Category

2010s British Modern Pendant Necklaces

Materials

Tourmaline, Ruby, Sapphire, Blue Sapphire, Pink Sapphire, Yellow Sapphir...

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

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

18 Carat Oval Cut Diamond Engagement Ring GIA Certified E VVS1
Located in New York, NY
COCO -14 CARAT OVAL CUT 4 PRONG ETERNITY BAND EMERALD CUT HALO DIAMOND ENGAGEMENT RING IN PLATINUM
Category

2010s American Engagement Rings

Materials

Diamond, White Gold

.91 Carat Natural Oval Ruby and Diamonds Necklace 14 Karat
Located in New York, NY
Red Ruby & Diamonds Necklace .65ct. natural oval ruby Vivid Red .25ct. Natural diamonds
Category

2010s American Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

2.77 Carat GIA Certified No Heat Oval Ruby and 0.62 Carat Diamond Platinum 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 Cocktail Rings

Materials

Diamond, Ruby, Platinum

1.35 Carat Oval Red Ruby and Diamond Contemporary 18 Carat Gold Cluster Ring
Located in Hamilton, AU
Details The oval red natural ruby is 1.35 carats. The half moon cut diamonds, round brilliant cut diamonds
Category

21st Century and Contemporary Australian Contemporary Cluster Rings

Materials

Ruby, Diamond, White Gold, Gold, 18k Gold

18 Karat Yellow Gold Oval Eternity Diamond Ring '4 Carat'
Located in San Francisco, CA
This Eternity Ring showcase perfectly matched 20 Oval shape Natural Diamonds in a total weight of
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

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20 Carat Diamond Oval For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 20 carat diamond oval for your needs in our varied inventory. Every item for sale was constructed with extraordinary care, often using gold, yellow gold and white gold. You can easily find a 832 antique edition and 937 modern creations to choose from as well. If you’re looking for a 20 carat diamond oval 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. There have been many well-made iterations of the classic 20 carat diamond oval over the years, but those made by Roshe Jewels, DGI and Goshwara are often thought to be among the most beautiful. See these pages for an oval cut iteration of this accessory, while there are also round cut cut and cabochon cut versions available here, too. There aren’t many items for men if you’re seeking a 20 carat diamond oval, as most of the options available are for women and unisex.

How Much is a 20 Carat Diamond Oval?

Prices for a 20 carat diamond oval can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $939,000, while this accessory, on average, fetches $3,863.
Questions About 20 Carat Diamond Oval
  • 1stDibs ExpertAugust 24, 2021
    A 2 carat oval diamond is approximately 10.23mm × 6.82mm × 4.16mm in size. These diamonds usually have an approximate face-up area of 57.21 mm². Find a variety of diamonds on 1stDibs.