860 - ***850° platinum ring /°° set with a natural marquise-cut diamond (with a tiny scratch on one point) weighing 8.30 carats, color E, clarity VS1, no fluorescence, type IIa; the setting is accented with rows of brilliant-cut diamonds

***850° platinum ring /°° set with a natural marquise-cut diamond (with a tiny scratch on one point) weighing 8.30 carats, color E, clarity VS1, no fluorescence, type IIa; the setting is accented with rows of brilliant-cut diamonds TDD 58 - Gross weight: 13.5 g The stone is accompanied by its preliminary examination report from the LFG ***LOT SOLD BY NAME ONLY//stored in a bank vault REGISTRATION AND DEPOSIT OF A SECURITY DEPOSIT ARE REQUIRED BEFORE THE AUCTION TO BID ON THIS LOT Historically associated with the legendary Golconda mines in India, which have yielded some of the most extraordinary stones in history, Type IIa diamonds embody one of the purest expressions of the natural diamond. Their uniqueness lies in their exceptional chemical composition: consisting exclusively of carbon, they contain no detectable amounts of nitrogen or boron, unlike other major categories of diamonds. This remarkable purity gives them unique optical properties, exceptional clarity, and a transparency often compared to that of the clearest water. Extremely rare, Type IIa diamonds are estimated to account for only about 1 to 2% of natural diamonds used in jewelry. They are found primarily in India, Africa, Canada, and Australia. The purity of their crystalline structure is also associated with some of the diamond’s most fascinating manifestations, notably exceptional pink diamonds. When colorless, these diamonds can exhibit remarkable whiteness and achieve the highest color grades, from D to F. Among the most famous Type IIa diamonds are the Cullinan, the largest gem-quality rough diamond ever discovered (3,106 carats); the legendary Koh-i-Noor, a historic jewel of the British Crown; and the Pink Legacy, an exceptional pink diamond that has become iconic in the gemstone market. Rare, pure, and fascinating, Type IIa diamonds embody a force of nature capable of creating, in the silence of time, an almost unreal perfection.