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400 Carat Diamond Ring

Emerald Diamond Exclusive Platinum Ring
By Picchiotti
Located in Geneva, CH
emerald. Approximate diamond weight is 9.3 carats. The emerald which takes a central place in this
Category

21st Century and Contemporary Italian Art Deco Cluster Rings

Materials

Diamond, Emerald, Platinum

Round Diamond Pave "Mandala" Ring Set in 14K Yellow Gold
By Five Star Jewelry
Located in Austin, TX
Did someone say eyecatcher! With almost 400 top quality diamonds this ring will surely catch the
Category

21st Century and Contemporary American Contemporary Dome Rings

Materials

Diamond, Yellow Gold

GIA 4.01CT Estate Vintage Emerald Diamond 3 Stone Engagement Wedding Plat Ring
Located in New York, NY
ring. The Prong Set Emerald Diamond is 3.40CT with measurements of 9.17x7.31x5.15mm; GIA Certified as
Category

Early 2000s Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

3.80 Carat Natural Very Nice Looking Tanzanite and Diamond 14K Solid White Gold
Located in Los Angeles, CA
3.80 Carats Natural Very Nice Looking Tanzanite and Diamond 14K Solid White Gold Ring Total
Category

2010s American Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

1894 Victorian Antique Opal and Diamond Wedding Anniversary 18K Gold Ring Band
Located in New York, NY
English 1894 Victorian 3 Stone Antique Opal & Diamond Wedding Anniversary 18K Gold Ring Band
Category

Antique 1890s English Victorian Three-Stone Rings

Materials

Diamond, Opal, 18k Gold

Emilio Jewelry Gubelin Certified 6.00 Carat No Heat Ruby Ring
By Emilio!
Located in New York, NY
. Setting: White diamonds totaling approximately 14.00 carats A Mozambique ruby ​​can be said to be a
Category

21st Century and Contemporary Three-Stone Rings

Materials

Ruby

Sparkling 7.10 Carats Natural Brown Orange Loose Zircon Ring Gem From Cambodia
Located in Peshawar, PK
Loose Zircon Weight: 7.10 Carats Dimension: 9.7x9.5x6.7 Mm Origin; Cambodia Color: Brown Orange
Category

21st Century and Contemporary Cambodian Arts and Crafts Loose Gemstones

Materials

Zircon

2.00 carat fancy brownish greenish yellow pear shape diamond GIA certified
Located in Kowloon, HK
-carat diamond is a precious gemstone weighing approximately 400 milligrams. Its size contributes to
Category

2010s Asian Loose Gemstones

Materials

Diamond

Lithos 18KY Gold Black Briolettes & White Diamond Earrings
Located in Kirkwood, MO
diamond studs with a ring and a 1.0 mm cable chain. The total length of the earring is 22.91 mm. 400-50
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

White Diamond, Black Diamond, Gold, 18k Gold

Nathalie Jean Contemporary Diamond Tourmaline Amethyst Gold Pendant Necklace
By Nathalie Jean
Located in Milan, Lombardia
tropical vegetation reveal a sparkling diamond (0,05 carat) coupled with pristine fruit in the form of
Category

2010s Italian Contemporary Pendant Necklaces

Materials

Amethyst, Diamond, Multi-gemstone, Tourmaline, Gold, 18k Gold, Yellow Gold

Nathalie Jean Contemporary Diamond Tourmaline Amethyst Gold Pendant Necklace
By Nathalie Jean
Located in Milan, Lombardia
tropical vegetation reveal a sparkling diamond (0,05 carat) coupled with pristine fruit in the form of a
Category

2010s Italian Contemporary Pendant Necklaces

Materials

Amethyst, Diamond, Multi-gemstone, Tourmaline, Gold, 18k Gold, Yellow Gold

Eddie Sakamoto 18K Yellow White Gold Diamond Earrings/Jackets
Located in Kirkwood, MO
, one in each of the larger abstract squares. There is a total diamond weight of 0.13 carats. They are
Category

21st Century and Contemporary American Contemporary Drop Earrings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

4.13ctw Fancy Diamond Link Bracelet, 14K White Gold, Length 7 Inches, Statement
Located in McLeansville, NC
box clasp. Stones: - diamonds, 400 stones - round brilliant cut - 1.3 mm - 4.13 total carats - F-G
Category

Early 2000s Link Bracelets

Materials

Diamond, 14k Gold, White Gold

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3.55 Carat Natural Tanzanite and Diamond 14 Karat Solid White Gold Ring
Located in Los Angeles, CA
3.55 Carats Natural Very Nice Looking Tanzanite and Diamond 14K Solid White Gold Ring Total Natural Oval Cut Tanzanite Weight is: Approx. 3.20 Carats Natural Round Diamonds Weight:...
Category

2010s American Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Van Cleef and Arpels No Heat Oval-Cut Ruby 18k Yellow Gold GRS Certified Ring
By Van Cleef & Arpels
Located in Miami, FL
From the famed house of Van Cleef and Arpels, this ring centers an 8.85 carat oval-cut unheated Ruby and is flanked by an additional 2.00 carats of marquis-cut diamonds. The ruby is ...
Category

Late 20th Century French Modern Engagement Rings

Materials

Ruby, Yellow Gold, Gold, 18k Gold

Bulgari Diamond Ruby Gold Serpenti Necklace
By Bulgari
Located in New York, NY
Capturing the seductive and alluring quintessence of the Bulgari Serpent, this resplendent piece sinuously curves around the neck, with scales comprised of 18k yellow and white gold,...
Category

21st Century and Contemporary Italian Drop Necklaces

Materials

Diamond, Ruby, 18k Gold

22 Karat Yellow Gold Red Enamel Artisan Bracelet
Located in Mount Kisco, NY
A kaleidoscope of colors decorate this 22 Karat Yellow Gold Bracelet with its expertly hand-applied enamel design. Measuring 2-1/4 inches in diameter and with a 7 inches circumferenc...
Category

Late 20th Century Indian Bangles

Materials

Enamel, 22k Gold, Yellow Gold

Rare 10 Carat Burma Ruby Diamond Ring
Located in New York, NY
10.04 carat "Intense Red" Burma Ruby set in a custom, handmade platinum and diamond mounting featuring 2.80 carats of round brilliant cut diamonds. 100% Certified Burma Ruby A ...
Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Diamond, Ruby, White Diamond, Platinum

Natural Fancy Vivid Yellow and Extra White Diamond Platinum Gold Bracelet
Located in Miami, FL
I must say this is by far has most beautiful fancy natural yellow diamonds with colorless high quality white diamonds. Most diamonds has GIA lab Report. White diamonds are set in pla...
Category

2010s Tennis Bracelets

Materials

White Diamond, Yellow Diamond, 18k Gold, Platinum

3 Carat Princess Cut Diamond Engagement Ring Certified G VS2
Located in New York, NY
Center Earth Mined Diamond: Carat Weight: 2.06 Carats Color: G Clarity: VS2* Style: Princess Cut *Feather Filled. Grades based on appearance after clarity enhancement EGL internat...
Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Gold Ring with Marquise Emerald. Vintage inspired emerald ring
By Daizy Jewellery
Located in Istanbul, TR
14k gold ring with emerald side diamonds, emeralds and sapphires Total weight 2.5 gr - depends from size you choose. Gemstones - all are natural earth mined. Emeralds 1. Marquise ...
Category

21st Century and Contemporary Turkish Art Deco Fashion Rings

Materials

Diamond, Emerald, Sapphire, 14k Gold, Gold

2.85 Carat Natural Tanzanite and Diamond Halo Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring featuring a 2.85 Carat Natural Tanzanite and 0.24 Carats Diamond Accents set in Platinum. Tanzanite's name was given by Tiffany and Co after its only known source: T...
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

18 Karat White Gold Marquise Diamond and 18 Carat Each Blue Sapphire Earrings
Located in Palm Desert, CA
Set in 18 karat white gold are 42 Marquise cut diamonds for a total diamond weight of 13.32 carats with two Oval cut Blue sapphires - 16.68 and 19.41 carats - for a total sapphire we...
Category

2010s Italian More Earrings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

4 Carat Bezel Set Aquamarine Gemstone Ring in 18K Solid Yellow Gold
By VR Jewels
Located in Houston, TX
Aquamarine Solitaire Ring in 18K Yellow Gold is a perfect statement jewelry to match with every outfit of your wardrobe. It's just a simple ring and simplicity is the ultimate form o...
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Aquamarine, 18k Gold, Yellow Gold

Boulder Opal Gold Cuff Bracelet 22 Karat Gold 18 Karat Gold Textured
By Jennifer Kalled
Located in Wolfeboro, NH
Boulder opal cuff bracelet in 22k gold and 18k gold. Boulder opal is from Queensland, Australia primarily from the Winton area. This blue green boulder opal is a classic color, th...
Category

21st Century and Contemporary American Artisan Cuff Bracelets

Materials

Opal, 18k Gold, 22k Gold, 14k Gold

Vintage GIA F VS2 Mid-Century 1.58 Ct. Emerald Cut Engagement Ring in Platinum
Located in New York, NY
You will get lost in the sharp facets of this sleek mid-century engagement ring. An icy-white emerald-cut center stands bright in the center, flanked by two delicate channel-set bagu...
Category

Vintage 1950s Unknown Engagement Rings

Materials

Diamond, Platinum

Certified Colombian Emerald White Diamond 18K Three-Stone Engagement Ring
By HYT Jewelry
Located in Hong Kong, HK
This delicate 18 Karat White Gold ring features a lustrous Colombian Emerald at the forefront of its design. The spectacular hues of the Emerald are perfectly accentuated by the Whit...
Category

2010s Hong Kong Contemporary Three-Stone Rings

Materials

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

Octagon Shape Tanzanite Ring with Diamonds in 18K White Gold
By VR Jewels
Located in Houston, TX
Tanzanite ring in 18K Gold which perfectly goes with your personality and also helps you to improve your physic power. Designed with a tanzanite in center and diamonds that makes it ...
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Exceptional 43.69 Carats GIA Certified Fancy Yellow Diamonds Necklace
By Gad & Co.
Located in Miami, FL
Centers an 8.12 carat brilliant-cut Fancy Yellow Diamond of “VVS1” clarity, and contains another 19.63 carats of radiant-cut Fancy Yellow Diamonds that range from “VVS1-VS2” clarity....
Category

2010s Modern More Necklaces

Materials

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

Recent Sales

2 Carat D-Color GIA Certified Diamond 18k White Gold Ring on 400 Diamond Dome
By Édéenne
Located in Paris, FR
white diamonds totalling 1.33 carat. The “Full Moon” Ring is magical as it dramatically changes
Category

2010s French Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Pearl, 18k Gold, White Gold

2 Carat D-Color GIA Certified Diamond 18K White Gold Ring on 400 Diamond Dome
By Édéenne
Located in Paris, FR
white diamonds totalling 1.33 carat. The “Full Moon” Ring is magical as it dramatically changes
Category

2010s French Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Pearl, 18k Gold, White Gold

18 Carat White Gold Diamond Heart Band Wedding Ring
Located in Oxted, Surrey
18ct White Gold Diamond Heart Band Wedding Ring. Set with over 400 round brilliant cut Diamonds in
Category

2010s British Modern Band Rings

Materials

Diamond, White Diamond, 18k Gold

20 Carat Trilliant Cut Amethyst and Diamond Ring by John Landrum Bryant
By H.H. Prince John Landrum Bryant
Located in New York, NY
Thirty round brilliant cut diamonds are DEF color and VS1 clarity and weigh 1.01 carats. I created
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Amethyst, Diamond, Gold, 18k Gold

Mellerio French GIA 1.88 Carat Old European Cut Diamond Platinum Cocktail Ring
By Mellerio
Located in Beverly Hills, CA
their creations. Featuring a 1.88 carat old European cut diamond that is GIA certified as H color, VVS2
Category

Vintage 1950s French Retro Cocktail Rings

Materials

Diamond, Platinum

14kt Emerald Cut Emerald Ring with Diamond Halo
Located in Towson, MD
14kt white gold ring with emerald cut 1.42ct Emerald and .54tcw H-I/ I1-I1 Diamond Halo. The ring
Category

Early 2000s Fashion Rings

Materials

Diamond, Emerald, 14k Gold

ICA 18k White Gold 1.14 Carat Ruby & 0.35ct Diamond Three Stone Engagement Ring
Located in เกาะสมุย, TH
engagement piece is a beautiful 18K white gold fine ruby and diamond ring! The piece is accompanied by ICA
Category

21st Century and Contemporary Thai Three-Stone Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

Large GIA 5.04ctw Vintage Cushion Cut 3 Stone Diamond Platinum Ring
Located in New York, NY
This Late Art Deco Huge GIA 5.04ctw Cushion Cut 3 Stone Diamond Platinum Vintage Ring is
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

Paraiba 14.98 Carat 14k White Gold Cocktail Ring
Located in Scottsdale, AZ
band is encrusted with approximately 400 G color VS-SI1 full cut diamonds. Ring is fit for a size 7 but
Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Tourmaline, 14k Gold, White Gold

7.28 Cttw Platinum Mens Double Knuckle Diamond Ring
Located in New York, NY
. Two-finger knuckle ring with the brilliance of over 400 round diamonds with the combined carat weight
Category

20th Century American Modern Fashion Rings

Materials

Diamond, Platinum

Estimated 9ct Checkerboard Tanzanite Estate Ring - 1/2+ troy oz Gold and Dias
Located in Methuen, MA
Diamonds - $700 Cost to Set - $400 (rough estimate - difficult technique to set both the Tanzanite and the
Category

2010s North American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, Gold

GIA 5.01ct Estate Vintage Oval Diamond 3 Stone Engagement Wedding Platinum/18kYG
Located in New York, NY
Engagement ring. The Prong Set Oval Shaped Center Diamond is GIA Certified 4.04CT with measurements of
Category

Early 2000s Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Wendy Brandes 7-Ring Diamond and Colored Gemstone Animal-Design Collection
By Wendy Brandes
Located in New York, NY
diamonds. Size 6. One-of-a-kind. The Whale & Jonah: This is the third ring in this high art jewelry series
Category

2010s American Contemporary Models and Miniatures

Materials

White Diamond, Yellow Diamond, Black Diamond, Garnet, Pearl, Black Pearl...

4.13ctw Fancy Diamond Link Bracelet, 14K White Gold, Length 7 Inches, Statement
Located in McLeansville, NC
box clasp. Stones: - diamonds, 400 stones - round brilliant cut - 1.3 mm - 4.13 total carats - F-G
Category

Early 2000s Link Bracelets

Materials

Diamond, 14k Gold, White Gold

Wendy Brandes 18K Gold and Gemstone Dragon Ring With Hidden Knight
By Wendy Brandes
Located in New York, NY
& sword, weighing 2.8 grams. 400 green garnets, totaling 4.5 carats. 52 brown diamonds, totaling 52 points
Category

2010s American Contemporary Cocktail Rings

Materials

Tsavorite, Pearl, Garnet, Brown Diamond, Ruby, White Diamond, Diamond, P...

401.70 Carat Rondelle Sleeping Beauty Turquoise and Diamond Double Strand Plat
By Kiersten Elizabeth
Located in Charleston, SC
Detail 153 Sleeping Beauty Turquoise Rondelles 6.5 - 12.5 mm Weighing Approximately 400 Carats 71 Round
Category

21st Century and Contemporary American Modern Beaded Necklaces

Materials

Diamond, Turquoise, Platinum

4.14 Carat Antique Cushion Diamond Ring
Located in San Francisco, CA
and dazzling diamond ring. Inventory No. 10-91-400
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Van Cleef & Arpels Cosmos Collection Brilliant Diamonds Gold Ring
By Van Cleef & Arpels
Located in Paris, IDF
diamonds. Diamonds total weight: approximately 3,25 carats. Width: 27 mm. Finger size: 5,5, can be
Category

2010s French Contemporary Cocktail Rings

Materials

White Diamond, 18k Gold

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400 Carat Diamond Ring For Sale on 1stDibs

Find the exact 400 carat diamond ring you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from gold, 18k gold and white gold — can elevate any look. You can easily find a 36 antique edition and 101 modern creations to choose from as well. Finding the perfect 400 carat diamond ring may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. A 400 carat diamond ring from Tiffany & Co., Cartier and Emilio! — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and mixed cut alternatives. When shopping for a 400 carat 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 400 Carat Diamond Ring?

On average, a 400 carat diamond ring at 1stDibs sells for $4,295, while they’re typically $450 on the low end and $220,800 for the highest priced versions of this item.
Questions About 400 Carat Diamond Ring
  • 1stDibs ExpertNovember 2, 2023
    There is no rule for how many carats a diamond wedding ring should be. You're free to choose a ring with a carat weight that appeals to you and fits your budget. The average carat weight for diamond wedding rings is 1 to 1.9 carats. Shop an assortment of diamond wedding rings on 1stDibs.
  • 1stDibs ExpertFebruary 1, 2024
    Elizabeth Taylor's famous diamond ring was 33.19 carats. Although many people believe the Krupp diamond ring was an engagement gift, Richard Burton actually bought the gorgeous Asscher-cut ring to mark their five-year anniversary. For their engagement, Burton presented Taylor with an 18.61-carat emerald and diamond pendant made by Bulgari. The pendant detached from its necklace and could double as a brooch. Explore a large selection of diamond rings on 1stDibs.