1.75 ct Oval Ruby, GRS, Burma Unheated

1.75 ct Ruby, oval cut, from Mogok, Burma. Unheated: the colour is as the stone formed, with no heat treatment. Mogok, in Burma (Myanmar), has set the standard for fine rubies and sapphires for centuries. GRS report GRS2016-112369. Measurements: 6.92 × 6.19 × 4.37 mm. Exclusive stone. Unheated Burmese ruby from the Mogok Stone Tract, its colour entirely natural, with the strong red fluorescence typical of low-iron Burmese material. Offered privately to the trade. Our grading: red. Stock number CS-0972. The video on this page was filmed in our office, unedited and unfiltered. Price on request: WhatsApp or email us about this stone. Viewings by appointment in Toronto, Hong Kong, Bangkok and Dubai.

It is documented by GRS (GemResearch Swisslab), a Swiss laboratory widely used for coloured stones. Its length-to-width ratio is 1.12, close to square. A good size for a solitaire ring, a halo design 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