A 197.80-carat sapphire once worn by Empress Maria Feodorovna came up at Sotheby's Geneva on November 11, set in a Cartier bracelet made for it in 2015. The Romanov Sapphire sold for CHF 4,122,000, about 2.4 times its high estimate and more than the headline lot of the same sale a year earlier. What, beyond the carats, does a price like that measure?
Romanov Sapphire Sells for 2.4 Times Its Top Estimate
A 197.80-carat sapphire once worn by Empress Maria Feodorovna came up at Sotheby's Geneva on November 11, set in a Cartier bracelet made for it in 2015. The Romanov Sapphire sold for CHF 4,122,000, about 2.4 times its high estimate and more than the headline lot of the same sale a year earlier. What, beyond the carats, does a price like that measure?
November 11, 2026
Lot 1080 of Sotheby's Royal & Noble Jewels sale in Geneva on November 11 was a Cartier diamond bracelet set with a single cushion-shaped stone: the Romanov Sapphire, an unheated Ceylon sapphire of 197.80 carats. Estimated at CHF 850,000 to 1.7 million, it sold for CHF 4,122,000, roughly CHF 20,840 per carat. It was the stone's third appearance at Sotheby's in 55 years.
The result is easiest to judge against last year. In November 2025, the headline lot of the same Geneva auction was a diamond brooch that Napoleon lost while fleeing Waterloo. Estimated at no more than CHF 200,000, it made more than CHF 3.5 million; the sapphire has now passed that figure. Other lots also outran their estimates that evening. A padparadscha sapphire brooch estimated at CHF 40,000 to 60,000 sold for CHF 1,120,000, and a sapphire and diamond demi-parure estimated at CHF 300,000 to 500,000 made CHF 832,000. Who was bidding, and how many, has not been made public.
Maria Feodorovna, wife of Alexander III and mother of Nicholas II, owned the sapphire and wore it. After the revolution of 1917 it was recorded among the Russian crown jewels in the inventory led by the mineralogist Aleksandr Fersman, published in 1924–1926. It did not stay there long: the Soviet government sold it in the 1920s, during its dispersal of imperial treasures. By 1927 the stone was at Cartier, and that same year Cartier sold it to the opera singer Ganna Walska.
Each return to the saleroom found the sapphire in a different mount. When Walska sent it to Sotheby's Parke Bernet in New York on April 1, 1971, it was the centrepiece of a necklace of sapphire beads. In November 1992, at Sotheby's Geneva, it was set on a torsade of emerald and sapphire beads. In 2015 Cartier made the bracelet it wears today, in which the sapphire can be replaced by an engraved rock crystal centre set with triangular diamonds. The mounts changed; the stone did not.
An auction estimate is built from what can be measured: weight, colour, origin, treatment, comparable sales. This stone came with SSEF and Gübelin reports describing an unheated sapphire from Ceylon. What no laboratory can grade is provenance. The gap between a top estimate of CHF 1.7 million and a result of CHF 4,122,000 is the nearest thing this sale offers to a price for it, though the sale does not say why bidders went so far. The sapphire's own history shows how royal jewels last: mounts belong to their decade, while the stone moves on and carries its record with it.
Cartier's 2015 bracelet was designed to work without its centrepiece: lift out the Romanov Sapphire and an engraved rock crystal takes its place. The bracelet can stand on its own. The CHF 4,122,000 paid in Geneva on November 11 was, above all, a price for the stone in the middle and the record it carries.
