Categories
Precious Stones as Alternative Investments
The question of whether precious gemstones constitute a legitimate asset class — or merely a collect...
Fancy Colored Diamonds as Investment Assets
Among the various asset classes that have attracted serious investment consideration over the past t...
Christie’s New York, March 19, 2026
The March 19, 2026 “Jewels Online” sale at Christie's New York offered a clear and timely snapshot o...
The Graff Vivid Yellow Diamond
On May 14, 2014, Christie's Geneva offered one of the most visually imposing diamonds ever to appear...
Alexandrite
Among the rarest and most scientifically fascinating gemstones known to mineralogy, alexandrite occu...
The Sunrise Ruby
On May 12, 2015, Sotheby's Geneva offered a gemstone that would redefine the market for rubies world...
The Pink Star Diamond
On April 4, 2017, Sotheby's Hong Kong offered a diamond that had no real precedent in auction histor...
The Oppenheimer Blue
On May 18, 2016, Christie's Geneva presented what the auction house described as the most important ...
Kashmir Sapphires
In the world of precious gemstones, no origin commands a more consistent or more substantial premium...
Mogok Pigeon Blood Rubies
In the hierarchy of precious gemstones, no stone is more closely associated with absolute quality th...
The Hutton-Mdivani Jadeite Necklace
On April 7, 2014, Sotheby's Geneva offered what many specialists consider the most important jadeite...
The Rockefeller Emerald
On June 20, 2017, Christie's New York offered a Colombian emerald with one of the most distinguished...
Paraíba Tourmalines
In the history of gemstone discoveries, few have transformed a market as rapidly and completely as t...
Colored Stone Auction Trends 2024–2025
The 2024–2025 colored stone auction cycle has continued and in several ways intensified a trend that...
The Hope Diamond
The Hope Diamond is arguably the most famous gemstone in the world — not for having sold at auction ...
Spinels — The Royal Gems in Disguise
Few gemstones carry a more ironic history than spinel. For centuries, the finest red spinels were cl...
Four Sales, 125 New Records
The final days of March 2026 delivered a concentrated burst of auction activity across three contine...