Most Expensive Diamonds Ever Sold at Auction
Key Findings
About This Dataset
Most Expensive Diamonds Ever Sold at AuctionThe Pink Star ($71.2M) leads by a wide margin - roughly $13M clear of the next tier, where the Williamson Pink Star, Oppenheimer Blue and De Beers Blue cluster tightly at $57.5-57.7M. Colour is the decisive factor: every diamond here is either fancy pink or fancy blue, with no colourless stone making the list, showing that saturated natural colour, not size, drives the very top of the market. The field then steps down through the Winston Pink Legacy ($50.6M), Blue Moon of Josephine ($48.5M) and Graff Pink ($46.2M) before dropping sharply to the Winston Blue ($23.8M), which sold for barely a third of the leader despite its flawless vivid-blue grade.
Data Insights
Numbers, trends & sources behind this chart
Methodology & source
- Data source
- Wikipedia - Most Expensive Diamonds
- Coverage
- 8 entities · 8 observations
- Measure
- Auction Price (USD)
- Last updated
- 12 July 2026
- Compiled by
- The ANYSTAT team, from the source above
- Values are shown as reported by the source. Nothing is rescaled, rebased or converted — the only changes are thousand separators and decimals shown to two places.
- Entities are ranked highest-first on their value.
Data Sources & References
All external sources cited in this dataset
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