2.46 ct Oval Ruby, GRS, Thailand Heated

2.46 ct Ruby, oval cut, from Thailand. Heated, the long-established and stable treatment for rubies and sapphires, accepted across the trade. Thai (Siam) rubies are known for a deep red, a result of their higher iron content. GRS report GRS2017-010216. Measurements: 8.00 × 7.09 × 4.72 mm. Our grading: red. Stock number CS-0977. 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.

Its laboratory report is from GRS (GemResearch Swisslab), a Swiss laboratory widely used for coloured stones. Its length-to-width ratio is 1.13, close to square. Well suited to a solitaire, a halo ring or a pendant.

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Further reading: Reading a GRS Report: Pigeon's Blood, Royal Blue, Vivid and the Comments Line · Rubies, Sapphires and Emeralds: Origin, Treatment and Value