AuctionsSep 30, 2022
Red Diamond Earns $1.8M at AuctionAuctionsOct 07, 2022
‘Williamson Pink Star’ Diamond Sets Auction Record at $57.7M
Purchased by a collector in Florida, the 11.15-carat fancy vivid pink is the second most valuable jewel or gemstone ever sold at auction.
The 11.15-carat “Williamson Pink Star” is current set in a ring with trapeze-cut diamonds and brilliant-cut pink melee. The diamond sold for $57.7 million Friday at Sotheby’s Hong Kong. (Image courtesy of Sotheby’s)
Hong Kong—The “Williamson Pink Star,” an 11.15-carat fancy vivid pink diamond, sold for more than $57 million at Sotheby’s Hong Kong Friday, exceeding expectations and shattering an auction record.
A private client from Boca Raton, Florida, bought the 11.15-carat internally flawless cushion-cut diamond, paying 453.2 million Hong Kong dollars ($57.7 million), well above its $21 million pre-sale estimate.
Mined at the Williamson mine in Tanzania and cut by Diacore, the Williamson Pink Star is the second largest IF fancy vivid pink diamond ever to appear at auction.
The largest is the 59.6-carat “CTF Pink Star.” Chow Tai Fook paid $71.2 million for the diamond in 2017, and it remains the most expensive gem or jewel ever sold at auction.
The Williamson Pink Star is now No. 2.
The diamond, which Sotheby’s Wenhao Yu described in an interview with National Jeweler as “a true piece of art from Mother Nature,” can also lay claim to another record.
With a per-carat sale price of roughly $5.2 million, it now holds the price-per-carat record for any diamond or gemstone sold at auction, effectively doubling the previous record of $2.7 million per carat set by the 18.96-carat “Winston Pink Legacy” at Christie’s in 2018.
The 32.32-carat piece of rough that Diacore cut to become the “Williamson Pink Star,” now known as “The Rosenberg Williamson Pink Star.” Diacore bough the rough from mining company Petra in December 2021. (Photo courtesy of Sotheby’s)
Diacore crafted the diamond into a cushion-shaped fancy vivid pink stone weighing 11.15 carats. (Photo courtesy of Sotheby’s)
“One of the purest, pinkest of diamonds, The Rosenberg Williamson Pink Star now takes its place in the pantheon of world record-breaking gemstones of the rarest kind, as the second highest price achieved for any jewel or gemstone sold at auction,” Yu said in a statement from Sotheby’s following the sale.
“The result today not only attests to the resilient demand for top quality diamonds in Asia, but a heightened awareness of the great scarcity of pink diamonds driven by an ever-limited supply.”
Sotheby’s auction of the Williamson Pink Star will be followed closely by the sale of another pink diamond with record-setting potential.
On Nov. 8 in Geneva, Christie’s is set to sell the 18.18-carat pear-shaped fancy vivid diamond dubbed “The Fortune Pink.” Christie’s said it is the largest pear-shaped fancy vivid pink ever offered at auction.
Pre-sale estimates have the stone selling for $25 million-$35 million.
Editor’s note: This story was updated on Oct. 12, 2022, to remove information about the stone being renamed, as Sotheby’s originally reported. The diamond has retained the name of the “Williamson Pink Star.”
More on Auctions
The Latest
ColumnistsMay 26, 2026
The Key Mindset for Better Trade Show BuyingBuying discipline at trade shows starts with clarity about your inventory levels, Smith writes.
Events & AwardsMay 26, 2026
12 JCK Talks Sessions to Add to Your Las Vegas ScheduleThe trade show’s education series returns, with sessions on retail trends, AI, watches, marketing, corporate responsibility, and more.
Events & AwardsMay 26, 2026
CBG Brings Its Curated Designer Project to Las Vegas ShowThe Curated Designer Project has expanded to highlight eight independent jewelry designers during CBG’s Las Vegas show.
Brought to you by
All Eyes on Gold Prices. Alternatives to Look For. And What to BEWARE of in VegasAs gold prices rise, today’s retailers are looking for alternatives at prices that will appeal to wider audiences.
TrendsMay 26, 2026
Amanda’s Style File: A Cooldown Is ComingBring a cool tone to your summer jewelry with these white metal pieces.
Weekly QuizMay 21, 2026
This Week’s QuizTest your jewelry news knowledge by answering these questions.
Events & AwardsMay 22, 2026
Instore Buys JA New York ShowThe deal closed this week, which means Instore will produce the JA NY show slated to take place this fall.
FinancialsMay 22, 2026
Richemont’s Jewelry Brands Lead the Charge in Q4The company’s jewelry sales were up in Q4 and the fiscal year, with Richemont raising prices in part because of the cost of gold.
Brought to you by
How Modern Training Is Becoming a Competitive Advantage for Jewelry RetailersWith the trade and customer trust in mind, GIA® developed NextGem™ – on-demand training designed specifically for retail.
CollectionsMay 22, 2026
Leigh Maxwell Celebrates 5 Years at Couture With ‘Bauble’ CollectionThe “Bauble” capsule collection of colorful one-of-a-kinds includes our Piece of the Week, the “Bauble” earrings, featuring rose zircon.
MajorsMay 22, 2026
Stuller’s New Packaging, Display Catalog Is Out The updated catalog has a newly dedicated section for gift wrapping.
PodcastsMay 21, 2026
Episode 5: Sotheby’s Frank Everett Puts the Auction Market in PerspectiveEverett covers colored stones’ surging popularity, the mellow return of the “Mellon Blue,” and his “The Devil Wears Prada” doppelgänger.
IndependentsMay 21, 2026
Springer’s Jewelers’ New Flagship Will Serve Next-Gen Luxury ShoppersFourth-generation CEO Lilly Mullen wants to emphasize experience, connection, and personalized service.
Events & AwardsMay 21, 2026
JA Announces Nina Pugliese Memorial ScholarshipThe new award, created in partnership with Henne Jewelers, honors the late designer’s legacy through supporting jewelry education.
SourcingMay 21, 2026
Botswana, Angola Join WFDBThe addition of the diamond-producing countries as nation affiliated members broadens the federation’s global representation, WFDB said.
CrimeMay 20, 2026
NYPD Warns of Jewelry Swap Scams Targeting SeniorsThe NYPD is warning elderly New Yorkers to keep their jewelry hidden when walking outside to avoid being a target.
IndependentsMay 20, 2026
Adornment & Theory’s New Store Feels Like Home Designer Viviana Langhoff has realized her dream of owning a space for her Chicago jewelry store that looks and feels like her brand.
Events & AwardsMay 20, 2026
Here Is Couture’s 2026 Education Lineup The sessions will run from Friday, May 29, to Sunday, May 31, with one being a live taping of an episode of Couture’s podcast.
Lab-GrownMay 20, 2026
Savannah Friedkin Jewelry Names New CEOFormer Stephanie Gottlieb Fine Jewelry executive Morgan P. Richardson is joining the lab-grown diamond jewelry brand.
WatchesMay 19, 2026
Here’s the AP x Swatch Pocket Watch That Caused PandemoniumThe $400 pocket watch is a blend of Audemars Piguet’s iconic eight-sided Royal Oak and Swatch’s unserious Pop watches from the ‘80s.
CollectionsMay 19, 2026
Chris Ploof’s New Collection Makes an Ancient Metal ModernWith gold prices on the rise, the “Modern Electrum” collection uses an alternative, non-tarnishing metal alloy composed of gold and silver.
IndependentsMay 19, 2026
Ellen and Michael Fruchtman Retire, Sell Marketing Agency Fruchtman Marketing has new owners, Erin Moyer-Carballea and Manuel Carballea, and will relocate to Miami.
ColumnistsMay 19, 2026
Peter Smith: The (Mostly) Immutable Sales TruthsIn a column for the 2026 State of the Majors issue, Smith lists 10 time-tested principles about sales that still ring true.
ColumnistsMay 18, 2026
Edahn Golan: What a K-Shaped Economy Means for Fine JewelryIn a column for the 2026 State of the Majors issue, Golan spells out how the growing economic divide in the U.S. is reshaping the market.
CollectionsMay 18, 2026
Foundrae’s New Collection Taps Into JoyThe “Limitless Expansion of Joy and Hope” collection evokes summer through colored gemstones and motifs of butterflies and florals.
CollectionsMay 18, 2026
Hancocks London Acquires Historic ‘Inchiquin’ EmeraldThe jewel, circa 1890, is from the late Victorian era and was owned by descendants of the last high king of Ireland.
Events & AwardsMay 18, 2026
Here Are the 2026 JCK Industry Fund Grant Recipients This is what the nine recipients plan to do with the funds.
Events & AwardsMay 15, 2026
JA, MJSA To Sponsor Roundtable at TJSThe discussion, "Rebuilding the Jewelry Workforce," will take place on Saturday, May 16, in Troy, Michigan.
