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A Colour-change Spinel and Diamond Ring
One cushion-shaped colour-changing spinel, 10.97 caratsBrilliant-cut diamonds in the surround and the shank, totalling approximately 2.70 carats18 karat white gold(10.97-carat Spinel)
<em>Gübelin report, numbered 18031239, dated 16 April 2018, Vietnam, no indications of heating, colour-change from bluish-violet to purple.</em>