Lot description
Set with a cushion-shaped sapphire weighing 15.33 carats, flanked by two trapeze-shaped diamonds, mounted in platinum, size 5½, signed Ronald Abram, case stamped Ronald Abram. Accompanied by SSEF report no. 151076, dated 7 January 2026, stating that the sapphire is of Kashmir origin, with no indications of heating. Further accompanied by Gübelin report no. 26011220, dated 3 February 2026, stating that the sapphire is of Kashmir origin, with no indications of heating. Together with an appendix letter stating that the sapphire "... possesses a richly saturated and homogeneous colour, combined with a high degree of transparency, and a finely proportioned cut, … has been spared thermal treatment. Such a combination of characteristics is rare in natural Kashmir sapphires of this size". Also accompanied by AGL report no. 1153707, dated 20 January 2026, stating that the sapphire is of Classic™ Kashmir origin, with no gemological evidence of heat and clarity enhancement.
