The Romanov sapphire sells for $4.9m — nearly three times its estimate

On the evening of 11 November 2026, Sotheby's in Geneva sold a sapphire that once belonged to the crown jewels of the Russian Empire. It went for 4.1 million Swiss francs — about $4.9 million.

How far above expectations

The pre-sale estimate was 850,000 to 1.7 million francs.

ADV · A001ONLYWAY JEWELRY — gold, silver and platinumRings, chains, bracelets, earrings and pendants. Delivery across the UK.Advertise here

Work it out: the final price came in at 4.8 times the low estimate and 2.4 times the high. The stone weighs 197.80 carats, which puts the price at roughly $24,800 a carat.

The buyer was a private collector, who has not been named.

The detail that is easy to miss

In the headlines this is "the Romanov bracelet". In fact only the stone is historic.

The bracelet itself was made by Cartier in 2015. It has an interchangeable rock crystal centre that can take the sapphire's place. What was sold, in other words, is a setting of our own time carrying a stone from the century before last.

What the stone is

Gemmologically it is an unheated Ceylon sapphire — origin and the absence of treatment were confirmed by two independent laboratories, SSEF and Gübelin. For the market that is decisive: heating a stone sharply reduces its value, while "no heat" with a Swiss laboratory report is worth several times more.

ADV · A003We build websites for tradespeople and sole traders — £219Customers see your work and prices and message you straight away. Ready in 3 days, £219 instead of £438.Advertise here

According to the auction house, the stone's route to Russia ran through the Mughal Empire in South Asia, and it entered the imperial jewels in the 19th century.

The ball of 1903

The best-known episode in the sapphire's biography is the costume ball at the Winter Palace in 1903. The stone was worn by the Dowager Empress Maria Feodorovna, mother of Nicholas II.

Sotheby's calls that ball "widely regarded as the last great spectacle of Imperial Russia". The photographs of its guests in old Russian dress became iconic.

How the stone reached the West

After the revolution the sapphire was recorded in the inventory of nationalised treasures, and then passed into the Soviet government's dispersal sales of imperial treasures.

Its next owner was the opera singer and collector Ganna Walska. From her the stone went to Cartier, which created the present setting.

The rest of the sale

The royal and noble jewels sale ran to nearly 80 lots and raised 15.3 million francs, about $18.4 million.

Which means the Romanov sapphire alone accounted for 27% of the whole sale.

Other strong results: a 1937 Cartier black opal necklace-tiara from the collection of the Duchess of Devonshire at 1.7 million francs; a Bucherer necklace with a 43.07-carat Ceylon sapphire at 1.6 million; a 1910 Belle Epoque brooch with a 23.64-carat padparadscha from the collection of Sibylla of Saxe-Coburg and Gotha at 1.1 million; and a Mellerio meander tiara of around 1862, once the Countess of Paris's, at 512,000.

Andres White Correal, Sotheby's chairman of jewellery for Europe and the Middle East, explained the result as collectors' enduring fascination with jewels that combine exceptional gemstones, craftsmanship and history.

What a buyer should take from it

This sale is a good illustration of what a piece of jewellery is actually priced on. Carat weight is only one component. After it come origin, the absence of heat treatment, an independent laboratory report and a documented ownership history. Here it was provenance that tripled the price against the estimate.

At an everyday level the same rules apply, only more simply: look at the fineness, the Assay Office hallmark and exactly what the receipt says. Our jewellery shop ONLYWAY JEWELRY is in London — a place to see pieces and work through hallmarks and stones in person.