7.12 ct Oval Blue Sapphire, GRS, Madagascar Heated

7.12 ct Blue Sapphire, oval cut, from Madagascar. Heated, the long-established and stable treatment for rubies and sapphires, accepted across the trade. Madagascar is one of the most important modern sources of fine sapphire and ruby. GRS report GRS2026-018831. Measurements: 11.82 × 9.53 × 7.63 mm. Our grading: gem quality vivid (royal) blue. Stock number CS-0038. The video on this page was filmed in our office, unedited and unfiltered. 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 1.24. A statement stone for a signature piece, or for a collection.

More like this: Royal Blue Sapphires · Blue Sapphires · Madagascar Sapphires · Stone search

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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