A COLOUR-CHANGE SAPPHIRE AND DIAMOND RING
Set with an oval-shaped colour-change sapphire weighing approximately 12.45 carats, flanked by pear and marquise-cut diamonds, mounted in platinum, ring size 6¾
Accompanied by report no. GRS2013-078690 dated 26 July 2013 from the Gem Research Swiss Lab stating that the 12.45 carat colour-changing sapphire is of Sri Lanka origin, with no indication of thermal treatment
A COLOUR-CHANGE SAPPHIRE AND DIAMOND RING
Set with an oval-shaped colour-change sapphire weighing approximately 12.45 carats, flanked by pear and marquise-cut diamonds, mounted in platinum, ring size 6¾
Accompanied by report no. GRS2013-078690 dated 26 July 2013 from the Gem Research Swiss Lab stating that the 12.45 carat colour-changing sapphire is of Sri Lanka origin, with no indication of thermal treatment
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