Lot 195. “Cornflower Blue” Burmese sapphire and diamond ring, Cartier. Estimate: HK$1,000,000 - 1,800,000 'US$128,000 - 230,000). Sold for HK$1,200,000. Photo Tiancheng International.

The ring centring on a cushion-shaped sapphire weighing 6.86 carats, flanked by old European-cut diamonds together weighing approximately 2.25 carats, edged by old European-cut diamonds extending to the shoulders, mounted in platinum, signed. Ring size: 2¾ 

Accompanied by AGL report numbered CS1074010, dated 15 June 2016, stating that the 6.86 carat sapphire is natural, Blue colour, of Burmese origin, with no indications of heating or clarity enhancement.  

Lotus report numbered 5050-0431, dated 18 October 2016, stating that the 6.86 carat sapphire is natural, Blue colour, of intense saturation and medium-deep tone, of Burmese origin, with no indications of heating or treatment; along with a colour type comment, stating that the ‘The lively blue colour of this gem earns it the Lotus “Cornflower Blue” distinction.

Tiancheng International. AUTUMN AUCTION 2016, JEWELLERY AND JADEITE