A FINE SINGLE-STONE SAPPHIRE RING, BY VAN CLEEF & ARPELS
Set with a cushion-shaped sapphire weighing 11.54 carats to the triangular and circular-cut diamond shoulders and plain hoop, with French assay marks
Signed by Van Cleef & Arpels, no. 31170
With certificate A42.657 dated 14/11/1997 from the Chamber of Commerce (CCIP) Paris, stating that the sapphire is of Kashmir origin
As no comment is made as to the thermal enhancement, it is assumed that the stone may have been heat treated.