The cushion-shaped sapphire, weighing 14.53 carats, between baguette-cut diamond shoulders, signed Monture Boucheron, French assay mark, ring size N.

Accompanied by a report from SSEF stating that the sapphire is of Sri Lankan origin, with no indications of heating. Report number 80821, dated 29 June 2015.

Bonhams. LONDON JEWELS, 30 Apr 2019, 13:00 BST - LONDON, NEW BOND STREET