A new report released by the Natural Diamond Council (NDC) in partnership with Choron Group and the Fancy Color Research Foundation (FCRF) reveals that prices for fancy colour diamonds have surged by 205% over the past two decades, cementing their status as one of the most exclusive and resilient segments in the natural diamond market.
These vividly tinted diamonds—found in hues such as pink, blue, yellow, green and even red—make up just 0.01% of all natural diamonds mined. Their extreme rarity, coupled with increasing global demand from collectors, high jewellery maisons, and investors, has pushed values steadily upward. Since 2005, pink diamonds have appreciated by nearly 394%, blue diamonds by over 240%, and yellow diamonds by almost 50%, with overall prices increasing at a compound annual growth rate of 5.7%, according to data from the FCRF.
Once viewed as niche, fancy colour diamonds have become a regular feature in prestigious auctions and luxury jewellery collections. Recent sales underscore their enduring appeal. At Sotheby’s Geneva, the 10.03-carat Mediterranean Blue diamond sold for $21.4 million, translating to more than $2.1 million per carat. In another headline-grabbing sale, Christie’s New York achieved nearly $14 million for the 10.38-carat Marie-Thérèse Pink, a stone with historical ties to Marie Antoinette.
Auction houses continue to feature a growing variety of fancy colour diamonds, with pieces ranging from intense pinks and vivid blues to rare yellows commanding high estimates and drawing competitive bids. This expanding presence is driven not only by aesthetics but also by the perception of long-term value and stability in an uncertain global economy.
The supply of fancy colour diamonds remains highly constrained. Only a limited number of mines—in regions such as Canada, Botswana, South Africa, Sierra Leone, and the now-closed Argyle mine in Australia—have produced such stones, further heightening their scarcity.
As the global luxury market evolves and collector interest shifts toward rarity and provenance, fancy colour diamonds continue to gain prominence. With major fashion and jewellery events such as Paris Haute Couture Week on the horizon, industry observers expect these striking gems to remain at the forefront of high jewellery design, investment portfolios, and global auctions.
