7.35 ct Square Cushion Blue Sapphire, GRS, Ceylon Heated

7.35 ct Blue Sapphire, square cushion cut, from Ceylon. Heated, the long-established and stable treatment for rubies and sapphires, accepted across the trade. Sri Lanka (Ceylon) is known for bright, lively sapphires across the colour range, including padparadscha. GRS report GRS2026-020991. Measurements: 10.76 × 10.22 × 6.73 mm. Our grading: fine quality royal blue. Stock number CS-0037. 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. It is documented by GRS (GemResearch Swisslab), a Swiss laboratory widely used for coloured stones. Its length-to-width ratio is 1.05, close to square. A collector’s size, suited to a signature ring, pendant or a stone kept loose.

More like this: Royal Blue Sapphires · Blue Sapphires · Ceylon 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