Lot 264. 13.85 Carat Natural Unheated Burmese Sapphire and Diamond Bracelet, circa 1930. Estimate：HK$ 3,500,000 - 4,500,000／US$ 450,000 - 577,000. Courtesy Tiancheng International.
The bracelet centring with a cushion-shaped sapphire weighing 13.85 carats, decorated with calibré-cut diamonds together weighing approximately 45.00 carats, mounted in platinum, length approximately 172mm.
Accompanied by Gübelin report numbered 13067304, dated 25 June 2013, stating that the 13.85 carat sapphire is natural, Blue colour, of Burmese origin, with no indications of heating; along with an information sheet, stating that 'the sapphires are unheated. Large sapphires of gem-quality are rarely found in nature...The demand for natural, unheated sapphires kept growing while supply of such gems remains limited, making large, natural sapphires of gem-quality from all major sources, such as Kashmir, Burma, (Myanmar), Sri Lanka, Madagascar, and Tanzania, difficult to find.';
SSEF report numbered 84405, dated 9 March 2016, stating that the 13.85 carat sapphire is natural, Blue colour, of strong saturation, of Burmese origin, with no indications of heating.
Tiancheng International. HONG KONG SPRING AUCTION, Jewellery and Jadeite. 12 Jun · 1 pm