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  • Catalogue Essay

    If a diamond is classified as Type IIa, it indicates that the diamond contains almost none or is completely free of nitrogen. Since nitrogen is one of the reasons contributing to the yellow hue in diamonds, Type IIa represents utmost purity and makes up only 1-2% of all natural diamonds. Many of the world’s most famous diamonds are Type IIa, including the Cullinan and Kooh-i-Noor.

617

An Unmounted Heart-shaped Diamond

Estimate
HK$750,000 - 850,000 
$95,000-110,000

Contact Specialist
Terry Chu
Head of Jewellery, Asia, Senior Director
+852 2318 2038

Jewels & Jadeite

Hong Kong Auction 29 May 2017