Jacques Timey for Harry Winston

Set with a cushion-shaped sapphire weighing 16.65 carats, flanked by two triangular diamonds, mounted in platinum and 18 karat yellow gold, size 6¼, maker’s mark for Jacques Timey.

Accompanied by SSEF report and appendix no. 102923, dated 25 September 2018 and Gübelin report no. 18100103, dated 17 October 2018, both stating that the sapphire is of Kashmir origin, with no indications of heating. SSEF appendix further stating that the "sapphire exhibits a remarkable size and weight of 16.655ct, combined with an attractively saturated blue colour and a very fine purity."