Sewn to the silk of Catherine the Great’s gowns, then vanished for a century. The unlikely tale of how her diamond flowers — and an Imperial Fabergé necklace — found their way back.
Sotheby’s Geneva High Jewelry Sale on 12 May 2026 is led by a 6.03-carat fancy vivid blue diamond from the Cullinan mine, alongside De Beers Jwaneng diamonds and extraordinary signed jewels.
Why do Kashmir sapphires command record prices at auction? Their legendary history, velvety blue, and why a lab certificate changes everything.
De Beers and Sotheby’s unveiled The Jwaneng 28.88 — a flawless, D-colour, 28.88-carat Type IIa diamond from Botswana — at Maison Assouline in London, ahead of its auction debut in Hong Kong on 23 April 2026.
Three jewels of imperial provenance take centre stage at Sotheby’s Royal & Noble Jewels Sale in Geneva: Napoleon’s diamond brooch seized at Waterloo, Cunegonde of Saxony’s pearl Sévigné, and Princess Neslishah Sultan’s pink diamond ring — each a reflection of history’s splendour and legacy.
A masterpiece of nature and craftsmanship, The Glowing Rose—a 10.08-carat Fancy Vivid Pink diamond of exceptional clarity and purity—will take centre stage at Sotheby’s Geneva on 12 November. Set in a bespoke Boodles mount, this extraordinary gem stands among the rarest ever to appear at auction, expected to achieve around $20 million.
A Bulgari blue diamond set to premiere at the MET Gala is estimated to achieve in excess of $25 million at Sotheby’s Geneva.
Sotheby’s unveiled in Dubai The Golden Canary, an exceptional 303.10 carat Fancy Deep Brownish-Yellow diamond
Unveiling the rare De Beers Millennium Blue diamond in London this morning. The largest oval fancy vivid blue diamond everContinue Reading