Auctions

Sotheby’s Sells 100-Carat Round for Record Per-Carat Price

AuctionsApr 09, 2018

Sotheby’s Sells 100-Carat Round for Record Per-Carat Price

The auction house declined to disclose the diamond’s full final sale price though.

20180209_Sothebys1.jpg
The Sotheby’s Diamonds retail boutique in London sold this 102.34-carat, Type IIa, D color, flawless round brilliant for a per-carat price that it said “far exceeds” that for any colorless diamond sold at auction.

London--Two months after the Sotheby’s Diamonds retail boutique in London unveiled a 102.34-carat round diamond, it has found a buyer for the stone.

The Type IIa GIA-graded diamond is the largest round, D color, flawless diamond on record, and the only round brilliant over 100 carats with perfect color and clarity, according to the auction house.

De Beers mined the rough for this diamond, which weighed 425 carats, in Botswana about two years ago. Diacore cut and polished the stone in Johannesburg and New York over a period of six months.

Sotheby’s would not reveal the identity of the buyer or the total price paid, only noting that the final price per carat “far exceeds” that for any colorless diamond sold at auction. The current price-per-carat auction record for a white diamond is $260,252, set at Sotheby’s in Hong Kong in 2013.  

When Sotheby’s unveiled the diamond in February, it told National Jeweler that not only would it beat the price-per-carat record, but it also would top the highest price paid for any diamond jewelry at auction, which stands at $33.7 million for De Grisogono’s “The Art of De Grisogono, Creation I,” auctioned at Christie’s last November.

The auction house did not respond by press time when asked if the diamond had achieved the latter.

Patti Wong, founder and chairman of Sotheby’s Diamonds, said, “When the new custodian of this stone first beheld it, they were, like everyone else who has seen it, completely captivated. It is hard to believe that something so ancient … can be so alive, so full of fire and blinding brilliance. A rarity in the mythical world of 100-carat stones, this diamond is a wonder of nature and of man’s ability to shape nature’s creations into an object of ultimate beauty.”

Sotheby’s operates two other Sotheby’s Diamonds retail locations, one in New York and one in Hong Kong.

Brecken Branstratoris the senior editor, gemstones at National Jeweler, covering sourcing, pricing and other developments in the colored stone sector.

The Latest

Jeweler setting a diamond into a ring
MajorsJul 21, 2025
Rio Grande Expands Personalization Offerings

As demand for custom jewelry grows, the company is expanding its services to support retailers.

National Associate of Jewelry Appraisers Logo
Events & AwardsJul 21, 2025
NAJA’s 2025 ‘Ace It’ Conference To Go Virtual

The mid-year conference for jewelry and watch appraisers is slated for Aug. 9 to 10 on Zoom.

Jacquie Aiche graduated turquoise beaded necklace
TrendsJul 21, 2025
Amanda’s Style File: Graduated With Honors

Graduated stones make for elevated tennis-style pieces and dramatic statement necklaces.

rio-article photo-diamond.jpg
Brought to you by
Taking the Moment Head On: How Rio Grande Champions the Present & Future of Fine Jewelry

As a leading global jewelry supplier, Rio Grande is rapidly expanding and developing new solutions to meet the needs of jewelers worldwide.

24th Gem Awards Show Logo
Events & AwardsJul 21, 2025
Gem Awards Now Accepting Nominations for 2026

Nominations in the categories of Jewelry Design, Media Excellence, and Retail Innovation will be accepted through July 30.

Weekly QuizJul 17, 2025
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Lewis Heyman
MajorsJul 18, 2025
Lewis Heyman on Sourcing Gemstones, Post-Retirement Plans

He retired last month after 28 years traveling the world to source the very best gemstones for his family’s jewelry business, Oscar Heyman.

CCWW Designs Multiple Shell Charm Necklace
TrendsJul 18, 2025
Piece of the Week: CCWW Designs’ Shell Charm Necklace

The charm necklace features six nautical charms of shells and coral that founder Christina Puchi collected on Florida’s beaches.

an instructor and a student in a bench jewelry classroom
Brought to you by
Investing in the Next Generation of Bench Jewelers

The Seymour & Evelyn Holtzman Bench Scholarship from Jewelers of America returns for a second year.

The Plumb Club board members
MajorsJul 18, 2025
Plumb Club Elects New Board Members

The organization elected its youngest vice president as it looks to draw in fresh talent.

Jewelry industry veterans Brad Campbell and John Liebler
TechnologyJul 18, 2025
Brad Campbell, John Liebler Join Clientbook’s Executive Team

Campbell joins the company as vice president of business development while Liebler is the new vice president of operations.

Silver, Gold, and Bronze Medals for Italy Olympic Winter Games
CollectionsJul 17, 2025
2026 Winter Olympic Medal Design Symbolizes Unity

The medals feature a split-texture design highlighting the Games’ first time being hosted by two cities and the athletes’ journeys.

vimeo screenshot.png
Supplier BulletinJul 17, 2025
The INSTORE Jewelry Show 2025: Your Holiday Preparations, All Wrapped Up!

Sponsored by The INSTORE Jewelry Show 2025

Guinness
SurveysJul 17, 2025
The Most Recommended Brands in the World, According to YouGov

Globally, travel and transportation brands reigned, while in the U.S., alcoholic beverage companies and a lingerie brand took the top spots.

Gina Ferranti
IndependentsJul 17, 2025
Gina Ferranti of GiGi Ferranti Jewelry Dies at 59

The Brooklyn-based jewelry designer is remembered as a true artist and a rare talent.

Rio Tinto Chief Executive Simon Trott
SourcingJul 17, 2025
Rio Tinto Names New CEO, Production Rises at Diavik

Production at the mine in Canada’s Northwest Territories topped 1 million carats in Q2, the third consecutive quarter of growth.

Jewelers of America Learning Workship Logo
Events & AwardsJul 17, 2025
JA to Hold Learning Workshops This Fall

A new slate of Learning Workshops will take place in Oklahoma, Mississippi, and Georgia.

Gold bracelets and bangles
SurveysJul 16, 2025
Signet Jewelers Falls Lower on NRF’s ‘Top 100’ Retailers List

The middle class is changing its approach to buying jewelry and affordable luxury goods, the NRF said.

Buccellati Opera high jewelry bracelet
FinancialsJul 16, 2025
Richemont’s Jewelry Sales Up 7% in Q1

It marks the third consecutive quarter of growth for Cartier, Van Cleef & Arpels, Buccellati, and Vhernier.

Rolex Datejust ref. 16233
WatchesJul 16, 2025
The Top-Selling Rolex Models of the Last 15 Years, According to Bob’s Watches

The reseller’s market trends report, based on its sales data, also shows exactly how much Rolex prices have jumped since 2010.

Jake Duneier and Danielle Duneier
IndependentsJul 16, 2025
Clyde Duneier Ushers In Fourth Generation

Jake Duneier and Danielle Duneier-Goldberg have stepped into the roles of CEO and president, respectively.

Boucheron Impermanence Boucheron Dragonfly Earrings and Wisteria Hair Piece
CollectionsJul 15, 2025
Boucheron’s New High Jewelry Calls Attention to Nature’s Impermanence

The “Impermanence” collection contemplates nature through the Japanese art of Ikebana (flower arranging) and philosophy of wabi-sabi.

James Avery Cedar Park
MajorsJul 15, 2025
James Avery Expands to 2 More States

The Texas-based jewelry retailer has set up shop in Tennessee and Arizona.

Eric Ford, Couture’s new brand director and former fine jewelry buyer at Neiman Marcus
Events & AwardsJul 15, 2025
Neiman Marcus Vet Joins Couture as Brand Director

Eric Ford will step into the role, bringing with him decades of experience.

Bench jeweler holding a ring and a tool
MajorsJul 15, 2025
Ben Bridge Jeweler Acquires Olympic Manufacturing

In addition to improved capabilities, the acquisition will allow the jeweler to offer support to other independent jewelers.

Guzema Celestial Blue
CollectionsJul 15, 2025
Guzema Debuts First Colored Gemstone Jewelry

The “Celestial Blue” capsule collection campaign features Olympian Kateryna Sadurska.

Nanis Mykonos Store Exterior and Interior
MajorsJul 14, 2025
Nanis Opens First Store

The seasonal store, located in Mykonos, Greece, offers exclusive events, personal styling, and curated experiences.

Long’s Jewelers Summer of Love promo
IndependentsJul 14, 2025
It’s the Summer of Love at Long’s Jewelers

The New England jeweler is hosting a bridal event for the month of August.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy