Williamson Pink Star
Photo credit: Sotheby's

Sotheby’s Selling ‘Historic’ 11.15 carat Williamson Pink Star

The 11.15 carat Williamson Pink Star is the second largest internally flawless fancy vivid pink diamond to appear at auction. The cushion cut diamond, estimated at $21 million, will be sold in a single-lot auction in Hong Kong on October 5.

Gem of Distinction

This  is only the second internally flawless fancy vivid pink diamond weighing over 10 carats to be offered at auction, the first being the CTF Pink Star, sold by Sotheby’s in 2017, which continues to hold the world auction record for any jewel. The Williamson Pink Star, recovered from the Williamson mine in Tanzania. Like the Williamson Pink Diamond, owned by the late Queen Elizabeth II, the Pink Star’s naming reflects that provenance.

Williamson Pink Star
Photo credit: Sotheby’s

One For The Ages

The 11.15 carat stone was fashioned from a rough crystal weighing 32.32 carats by master cutters from Diacore. According to Sotheby’s the Williamson Pink Star will have a place in the history books as one of the most beautiful diamonds in the world:

Throughout the ages, pink diamonds have enjoyed a significant place in history, with famous gemstones including the Darya-i-Nur, Noor-ul-Ain, Agra, and the Williamson Pink Diamond. The Williamson mine was originally discovered in 1940 by Dr John Williamson, who was a Canadian geologist, and it was a mine that was famous for producing fine ‘bubblegum’ pink diamonds. The most famous example from this mine is the Williamson Pink Diamond, belonging to Her late Majesty Queen Elizabeth II.

Queen Elizabeth II
Photo credit: NASA/Bill Ingalls

Pink Diamond Rarity

Pink diamonds are among the rarest colors to occur naturally in diamonds. The Argyle Mine in Australia produced more than 90% of the world’s pink diamonds prior to its retirement in 2020, making gemstones like the Williamson Pink Star even more significant and rare today.

Williamson Pink Star
Photo credit: Sotheby’s

Touring East

The diamond may be viewed by the public starting in London, after which it may be seen in Dubai, Singapore, Taipei and Hong Kong before its final sale.

Angi Butler

Angi's first career was in diamond, gemstone and fashion jewelry sales. Now a corporate executive, she shares her advice and opinions on these pages.

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