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400ct Round Brilliant Cut Diamond

14k Circle Diamond Stud Earrings Round Diamond Studs
14k Circle Diamond Stud Earrings Round Diamond Studs

14k Circle Diamond Stud Earrings Round Diamond Studs

By Oshi Jewels

Located in Bangkok, TH

) :- 8 MM. Diamond Cut :- Round Total CTW :- 0.18 ct No. of Diamond :- 28 Stone Size:- 1.1 mm. Diamonds

Category

21st Century and Contemporary Thai Modern Stud Earrings

Materials

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

Fabergé Pill Box 18K Yellow Gold Green GuillocheEnamel 12 Diamonds & 16 Rubies
Fabergé Pill Box 18K Yellow Gold Green GuillocheEnamel 12 Diamonds & 16 Rubies

Fabergé Pill Box 18K Yellow Gold Green GuillocheEnamel 12 Diamonds & 16 Rubies

By Fabergé

Located in Pforzheim, DE

(18k) Dimensions: 52*40*32 mm Vitreous enamel: translucent green Diamonds: 12 brilliant cut diamonds

Category

21st Century and Contemporary German Belle Époque Enamel Frames and Objects

Materials

Diamond, Ruby, 18k Gold, Yellow Gold, Enamel

Recent Sales

Stunning 18K Yellow Gold Bracelet with 1.65 ct Natural Diamonds IGI Cert
Stunning 18K Yellow Gold Bracelet with 1.65 ct Natural Diamonds IGI Cert

Stunning 18K Yellow Gold Bracelet with 1.65 ct Natural Diamonds IGI Cert

Located in רמת גן, IL

0.0102 ct. each, total: 1.65 ct. cut: round brilliant colour: G-I clarity: VVS-VS dimensions: width

Category

2010s Singaporean Bangles

Materials

Diamond, 18k Gold, Yellow Gold

Orange Sapphires Multi Strand Beaded Necklace
Orange Sapphires Multi Strand Beaded Necklace

Orange Sapphires Multi Strand Beaded Necklace

Located in Napoli, NA

yellow/white gold clasp adorned by 0.50 ct of round brilliant cut diamonds G color VVS clarity. Circa

Category

Vintage 1980s More Necklaces

Materials

Diamond, Sapphire, 18k Gold

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Diamond Necklace Tiara
Diamond Necklace Tiara

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By Diamond Scene New York

Located in New York, NY

A MASTERPIECE! 46.75 carats of white pear, marquise and round brilliant cut diamonds set in 18k white gold. The piece can be worn as a necklace and easily converted into a tiara...

Category

21st Century and Contemporary Drop Necklaces

Materials

Diamond, 18k Gold

MUGLER Crystal Teardrop Corset Top Rhinestone Corsage
MUGLER Crystal Teardrop Corset Top Rhinestone Corsage

MUGLER Crystal Teardrop Corset Top Rhinestone Corsage

By Mugler

Located in Berlin, BE

Spectacular Mugler Teardrop Corset Top. The beautiful piece showcases Thierry Mugler's signature blend of bold structure and feminine elegance. Crafted in a delicate powder blue, the...

Category

1990s Italian Corsages

14k Solid Gold Diamond U Threader Earrings Diamond Wire Hoop Earrings
14k Solid Gold Diamond U Threader Earrings Diamond Wire Hoop Earrings

14k Solid Gold Diamond U Threader Earrings Diamond Wire Hoop Earrings

By Oshi Jewels

Located in Bangkok, TH

Diamond U Threader Earrings are made of 14k solid gold featuring shiny brilliant round cut natural diamonds. Available in three colors of gold: White Gold / Rose Gold / Yellow Gold. ...

Category

21st Century and Contemporary Thai Modern Hoop Earrings

Materials

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

18k Gold Diamond Clover Stud Earrings Lucky Clover Earrings
18k Gold Diamond Clover Stud Earrings Lucky Clover Earrings

18k Gold Diamond Clover Stud Earrings Lucky Clover Earrings

By Oshi Jewels

Located in Bangkok, TH

Diamond Clover Stud Earrings Lucky Clover Earrings Diamond Stud Earrings 18k Gold Rose Gold White Gold Dainty Delicate Studs. These Dainty Stud Earrings are made of solid 18k gold f...

Category

21st Century and Contemporary Thai Modern Stud Earrings

Materials

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

18k Solid Gold Bezel Set Baguette Diamond Earrings Duo Baguette Stud
18k Solid Gold Bezel Set Baguette Diamond Earrings Duo Baguette Stud

18k Solid Gold Bezel Set Baguette Diamond Earrings Duo Baguette Stud

By Oshi Jewels

Located in Bangkok, TH

Baguette Diamond Stud Earrings in 18k Rose Gold, Yellow Gold, White Gold. These Dainty Stud Earrings are made of 18k solid gold featuring shiny brilliant round cut natural diamonds ...

Category

21st Century and Contemporary Thai Modern Stud Earrings

Materials

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

14K Yellow Gold 1/2 Carat Round-Cut Diamond Solitaire Stud Earrings
14K Yellow Gold 1/2 Carat Round-Cut Diamond Solitaire Stud Earrings

14K Yellow Gold 1/2 Carat Round-Cut Diamond Solitaire Stud Earrings

Located in New York, NY

Indulge in the timeless allure of these 14K Yellow Gold 1/2 Cttw Round-Cut Diamond Solitaire Stud Earrings, a mesmerizing embodiment of elegance and sophistication. Crafted with meti...

Category

21st Century and Contemporary Indian Contemporary Stud Earrings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

18k Gold Cluster Diamond Earrings Diamond Teardrop Stud Earrings
18k Gold Cluster Diamond Earrings Diamond Teardrop Stud Earrings

18k Gold Cluster Diamond Earrings Diamond Teardrop Stud Earrings

By Oshi Jewels

Located in Bangkok, TH

Diamond Teardrop Stud Earrings in 18k Rose Gold, Yellow Gold, White Gold. These Dainty Stud Earrings are made of 18k solid gold featuring shiny brilliant round cut natural diamonds ...

Category

21st Century and Contemporary Thai Modern Drop Earrings

Materials

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

Hermès 7 Drawers Chest Semainier in Wood for Scarves or Jewels
Hermès 7 Drawers Chest Semainier in Wood for Scarves or Jewels

Hermès 7 Drawers Chest Semainier in Wood for Scarves or Jewels

By Hermès

Located in Corcoué Sur Logne, Loire-Atlantique

Rare and Gorgeous Authentic Hermès Drawer To store scarves, but can be used for jewels as well Made of burl wood veneer Edges decorated with "H" marquetry Includes 7 drawers in w...

Category

20th Century Unknown Decorative Mounted Boxes

Galaxy Confetti Diamond Cigar Band, 8.4mm in 14 Karat Yellow Gold, 1 Carat
Galaxy Confetti Diamond Cigar Band, 8.4mm in 14 Karat Yellow Gold, 1 Carat

Galaxy Confetti Diamond Cigar Band, 8.4mm in 14 Karat Yellow Gold, 1 Carat

By Five Star Jewelry

Located in Austin, TX

This stunning Galaxy satin finished 14k yellow gold flush set cigar band dripping with diamonds is from our Confetti Collection. The cigar band shape and the creative setting of the ...

Category

2010s American Contemporary Band Rings

Materials

Diamond, 14k Gold, Yellow Gold, Gold

AJD Diamond and 14 Karat Flat Circle Earrings  April Birthstone
AJD Diamond and 14 Karat Flat Circle Earrings  April Birthstone

AJD Diamond and 14 Karat Flat Circle Earrings April Birthstone

By Aria Jewelry Design

Located in Raleigh, NC

Delicate Diamond Circle Earrings in 14KT Rich Yellow Gold Elevate your style with these delicate diamond circle earrings crafted from 14KT rich yellow gold. Designed to lie flat agai...

Category

21st Century and Contemporary American Artisan Stud Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Dainty Round Brilliant Natural Diamond Bezel Stud Earrings 18K Yellow Gold
Dainty Round Brilliant Natural Diamond Bezel Stud Earrings 18K Yellow Gold

Dainty Round Brilliant Natural Diamond Bezel Stud Earrings 18K Yellow Gold

Located in Suwanee, GA

Dainty Round Brilliant Natural Diamond Bezel Studs 18K Yellow Gold. Free Domestic USPS First Class Shipping! Free Gift Bag or Box with every order! Opal—the queen of gemstones, is ...

Category

2010s American Arts and Crafts Stud Earrings

Materials

Diamond, Yellow Gold, Gold, 18k Gold

Minimal Baguette Blue Sapphire Diamond Half Eternity Band Ring in 14k White Gold
Minimal Baguette Blue Sapphire Diamond Half Eternity Band Ring in 14k White Gold

Minimal Baguette Blue Sapphire Diamond Half Eternity Band Ring in 14k White Gold

By VR Jewels

Located in New York, NY

Minimal Baguette Blue Sapphire Diamond Half Eternity Band Ring in 14K Gold featuring natural blue sapphire of 0.72 carat and diamonds of 0.09 carats. The gorgeous handcrafted ring go...

Category

21st Century and Contemporary American Art Deco Band Rings

Materials

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

Hermes Birkin HSS 35 Bag Braise with Black Porosus Crocodile Gold Hardware
Hermes Birkin HSS 35 Bag Braise with Black Porosus Crocodile Gold Hardware

Hermes Birkin HSS 35 Bag Braise with Black Porosus Crocodile Gold Hardware

By Hermès

Located in Miami, FL

Mightychic offers a fabulous Hermes Birkin HSS 35 bag featured in Braise and Black porosus crocodile. This exceptional special-order Hermes Birkin is nothing short of breathtaking T...

Category

21st Century and Contemporary French Top Handle Bags

Hermes Kelly Pochette Gris Perle Ostrich With Palladium Hardware Handbag
Hermes Kelly Pochette Gris Perle Ostrich With Palladium Hardware Handbag

Hermes Kelly Pochette Gris Perle Ostrich With Palladium Hardware Handbag

By Hermès

Located in Aventura, FL

This Mini Kelly Pochette is in Gris Perle ostrich with palladium hardware and has tonal stitching, front flap, two straps with center toggle closure and a top flat handle. The interi...

Category

21st Century and Contemporary American Shoulder Bags

JOHN GALLIANO 1995 Vintage grey houndstooth padded hip jacket skirt Madonna IT40
JOHN GALLIANO 1995 Vintage grey houndstooth padded hip jacket skirt Madonna IT40

JOHN GALLIANO 1995 Vintage grey houndstooth padded hip jacket skirt Madonna IT40

By John Galliano

Located in Hong Kong, NT

JOHN GALLIANO 1995 Vintage grey houndstooth padded hip jacket skirt Madonna IT40 Reference: CRTI/A00599 Brand: John Galliano Designer: John Galliano Collection: Spring Summer 1995 - ...

Category

1990s French Twin Sets

Iconic Thierry Mugler Black Velvet Bustier Top Dramatic Winged Corset
Iconic Thierry Mugler Black Velvet Bustier Top Dramatic Winged Corset

Iconic Thierry Mugler Black Velvet Bustier Top Dramatic Winged Corset

By Thierry Mugler

Located in Berlin, BE

So Iconic! Truly wearable Art. Exremely rare Thierry Mugler corset top with dramatic winged details. Black velvet bustier with pointy waist. Museum worthy and strong camp vibe. Thie...

Category

1990s French Bustiers

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400ct Round Brilliant Cut Diamond For Sale on 1stDibs

Find the exact 400ct round brilliant cut diamond you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using gold, white gold and 18k gold. Find an antique version now, or shop for 3 vintage or 13 modern creation for a more contemporary example of these cherished accessories. You’re likely to find the perfect 400ct round brilliant cut diamond among the distinctive items we have available, which includes versions made as long ago as the 20th Century as well as those produced as recently as the 21st Century. There have been many well-made iterations of the classic 400ct round brilliant cut diamond over the years, but those made by Cartier, Oshi Jewels and Tiffany & Co. are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also brilliant cut cut and cushion cut cut versions available here, too. When shopping for a 400ct round brilliant cut diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 400ct Round Brilliant Cut Diamond?

The price for a 400ct round brilliant cut diamond starts at $410 and tops out at $16,888 with these rings, on average, selling for $3,560.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And 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

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.