For two years, the auction world lived with cautious estimates and withdrawn lots. Then the mood turned. Between the autumn of 2025 and the spring of 2026, the two leading houses, Christie's and Sotheby's, reported jewelry results that were strong on almost every measure: totals, sell-through rates, records for rare colored diamonds, and prices for signed vintage pieces that went far beyond what the stones alone would justify.
Here is what the numbers show, and what they suggest about where collectors are putting their money.
A category on the rise
Sotheby's jewelry department alone reported $305.9 million in sales by 10 December 2025, up 35% year on year, with one more sale still to close the next day. That figure came after the first jewelry auctions at its new New-York headquarters, which totaled $43.9 million with 96% of lots sold.
The momentum carried into 2026. At the half-year mark, Christie's luxury sales stood at $539 million, up 15%. Across all categories, Christie's public auction sales reached $3.5 billion (up 71%) with a 91% sell-through rate by lot, while Sotheby's public sales reached $3.4 billion (up 59%) with a 90% sell-through rate. Both houses also reported strong private sales, and both point to younger buyers arriving through luxury categories.
The rarest stones set the toneColored
• Le Mellon Blue, a 9.51-carat fancy vivid blue diamond, sold at Christie's Geneva on 11 November 2025 for CHF 20.5 million ($25.6 million), within its $20–30 million estimate.
• Le Mediterranean Blue, a 10.03-carat fancy vivid blue, sold at Sotheby's Geneva in May 2025 for CHF 17.9 million ($21.5 million).
• Le Desert Rose, a 31.68-carat fancy vivid orangy-pink diamond, sold in Abu Dhabi on 5 December 2025 for $8.8 million, above its $5–7 million estimate.
• L'Ocean Dream, a 5.5-carat fancy vivid blue-green diamond, sold at Christie's Geneva on 13 May 2026 for CHF 13.57 million ($17.37 million), a record for the most expensive fancy vivid blue-green diamond sold at auction. It was estimated at CHF 7–10 million, and the final lot of the sale drew a 20-minute bidding battle between three collectors.
That Geneva sale as a whole made $66.5 million (CHF 51.9 million), with 99% of lots sold and 84% selling above their high estimate.
The market is not one-directional, though. At Sotheby's Geneva in November 2025, "The Glowing Rose", a 10.08-carat pink diamond estimated at around $20 million, was withdrawn before the sale. In its spring 2026 Geneva sale, a 6.03-carat fancy vivid blue, internally flawless diamond estimated at $9–12 million failed to sell. Even in a strong market, buyers remain selective about the very top of the range pieces.
Signed jewels and history beat the raw material
The most striking results are often not the biggest stones.
• At Sotheby's Geneva Royal & Noble Jewels sale on 12 November 2025, a diamond brooch linked to Napoleon Bonaparte sold for $4.4 million (CHF 3.5 million), more than 17 times its $250,000 high estimate.
• At Sotheby's Paris on 30 September 2025, a fine jewelry sale of 269 lots totaled €7.4 million ($8.6 million), with nearly half of the lots selling above their high estimate. A "Toi et Moi" ring with a Colombian emerald and a Kashmir sapphire, partially signed Faraone, sold for €203,200, nearly triple its high estimate. The Paris jewelry and watch sales together (€9.3 million) were described as Sotheby's best jewelry results in Paris since 2018.
• In Geneva in May 2026, Christie's sold a 22-carat-plus Kashmir sapphire ring by Chaumet for CHF 2.74 million ($3.5 million), a 1930s Cartier Tutti Frutti clip-brooch for $1.35 million, and a Boucheron necklace made for the 1925 Paris Exposition for $1.54 million.
• At Sotheby's Geneva in spring 2026, a 1920s ruby and diamond "cravate" necklace by Lacloche Frères, estimated at CHF 160,000–280,000, sold for CHF 627,200.
The pattern is consistent: provenance, maker and period can multiply the value of the stones. Signed Parisian houses dominated the Paris sale (33 pieces by Cartier, 14 by Van Cleef & Arpels, 10 by Boucheron), which says a lot about what collectors are looking for.
Hong Kong confirms the trend
Spring 2026 results from Hong Kong point the same way. Sotheby's High Jewellery sale in April 2026 achieved HK$257 million (about $33 million) with an 89% sell-through rate, beating its pre-sale estimates.
Christie's went further at its Luxury Week in late May 2026. Its jewelry sale on 26 May totaled HK$581.5 million ($74.2 million), with 90% of the 121 lots sold. The headline lot, "The Ethereal Jadeite", a necklace of 61 translucent jadeite beads, sold for HK$200.2 million ($25.5 million) against an estimate of HK$110–200 million. Other lots above HK$10 million included a pink diamond brooch (HK$39.5 million), a Bulgari pink diamond ring (HK$25.5 million) and a Van Cleef & Arpels necklace (HK$12.1 million).
Combined with watches, handbags and wine, Christie's entire Hong Kong Luxury Week reached HK$957.8 million ($123.7 million), up 32% year on year, with 95% of lots sold and hammer prices 130% above low estimates overall.
Records to keep in mind
For context, the all-time benchmarks remain far above today's headline lots: the CTF Pink Star, a 59.60-carat pink diamond, sold for $71.2 million in Hong Kong, the highest price ever paid at auction for a diamond or a jewel. Marie Antoinette's pearl sold in Geneva for $36.2 million, the world record for a natural pearl.
What it means
Three takeaways stand out.
1. Confidence is back. Sell-through rates around 90% or higher signal that estimates are now realistic and buyers are present.
2. Rarity and story are the drivers. Top colored diamonds, historic provenance and signed Art Deco pieces outperform their estimates far more often than ordinary lots.
3. The buyer base is widening. Both houses say luxury categories are bringing in younger and more international buyers, and Sotheby's opened new markets such as Abu Dhabi in late 2025.
4. Hong Kong and jadeite are pulling their weight. A single jadeite necklace at HK$200 million shows that Asian buyers are driving results just as much as European colored-diamond sales.
The next test comes with the autumn Geneva and Hong Kong sales. We will follow the results here.