Fine Jewels
拍品 721:
Set with a octagonal-cut sapphire weighing 6.47 carats flanked by half-moon-shaped diamond shoulders, to the plain hoop, mounted in platinum, ring size 5¾
Accompanied by a report from the GemResearch Swisslab, stating that the 6.47 carat natural sapphire is vivid blue (GRS type "royal blue" color), originates from Sri Lanka and enhanced by heat with no residues present, report no. GRS2014-028445, dated 21st February 2014
