6.57 ct Oval Blue Sapphire, GRS, Burma Unheated

6.57 ct Blue Sapphire, oval cut, from Burma. Unheated: the colour is as the stone formed, with no heat treatment. Burma (Myanmar) has set the standard for fine rubies and sapphires for centuries. GRS report GRS2016-112352. Measurements: 12.52 × 9.34 × 6.74 mm. Exclusive stone. Unheated Burmese blue sapphire, its colour entirely natural. Offered privately to the trade. Our grading: royal blue. Stock number CS-1095. Approved trade buyers can sign in on this page for pricing, or WhatsApp or email us about this stone. Viewings by appointment in Toronto, Hong Kong, Bangkok and Dubai.

Royal blue, in its colour grade, describes a deep, rich, velvety blue, among the most valued sapphire colours. Its laboratory report is from GRS (GemResearch Swisslab), a Swiss laboratory widely used for coloured stones. Its length-to-width ratio is 1.34. Large enough to anchor a statement ring or pendant.

More like this: Royal Blue Sapphires · Blue Sapphires · Burma Sapphires · Unheated Sapphires · Unheated Gemstones · Stone search

Similar stones: 6.33 ct Oval Blue Sapphire Pair (3.20 + 3.13 ct), GRS, Ceylon Heated · 6.35 ct Oval Blue Sapphire, GRS, Ceylon Unheated · 6.52 ct Square Cushion Blue Sapphire, GRS, Ceylon Unheated · 6.53 ct Oval Blue Sapphire, GIA, Heated · 6.62 ct Pear Blue Sapphire, GRS, Ceylon Heated · 6.92 ct Cushion Blue Sapphire, GRS, Ceylon Unheated · 6.98 ct Cushion Blue Sapphire, GRS, Ceylon Heated · 7.05 ct Oval Blue Sapphire, GRS, Ceylon Unheated

Further reading: Reading a GRS Report: Pigeon's Blood, Royal Blue, Vivid and the Comments Line · Heated vs Unheated Sapphire: What the Difference Means for Price