A SAPPHIRE AND DIAMOND RING, BY FRED LEIGHTON

细节
A SAPPHIRE AND DIAMOND RING, BY FRED LEIGHTON
Set with a cushion-cut sapphire, weighing approximately 6.02 carats, flanked on either side by a half-moon diamond, to the circular-cut diamond gallery and hoop, mounted in platinum, ring size 5¾
Signed Fred Leighton, with maker's mark for Tanagro
With report 0108506 dated 5 September 2001 from Gübelin Gem Lab stating that gemmological testing revealed characteristics consistent with those of sapphires originating from Burma (Myanmar). No indications of thermal enhancement

With report GRS2001-07187 dated 27 July 2001 from the GRS GemResearch SwissLab stating that gemmological testing revealed characteristics corresponding to those of a natural sapphire from Burma (Myanmar). No indication of thermal treatment