Lot 100. An important 14.55 carats Kashmir cushion-shaped sapphire and diamond ring. Estimate CHF 1,500,000 - CHF 2,000,000 (USD 1,500,000 - CHF 2,000,000). Photo Christie's Images Ltd 2016.

Set with a cushion-shaped sapphire, weighing approximately 14.55 carats, between half-moon diamond shoulders, ring size 6 ½, mounted in platinum.

Accompanied by report no. 16020099 dated 16 February 2016 from the Gübelin GemLab stating that the origin of the sapphire is Kashmir, with no indications of heating, an Appendix stating that this sapphire 'possesses a richly saturated and homogeneous colour, combined with a high degree of transparency, and a finely proportioned cut', and an Information sheet on 'Unheated sapphires'.

Report no. 77956 dated 20 January 2015 from the SSEF Swiss Gemmological Institute stating that the origin of the sapphire is Kashmir, with no indications of heating, that the colour may also be called 'Royal Blue', and an Appendix letter stating that this sapphire 'exhibits a remarkable size and weight of 14.551 ct combined with a highly attractive saturated blue colour and a very fine purity'.

Christie's. Geneva Magnificent Jewels, 15 November 2016, Geneva