细节
AN EXCEPTIONAL SAPPHIRE AND DIAMOND 'PIERRES DE CARACTÈRE' RING, BY VAN CLEEF & ARPELS
Set with a cushion-shaped sapphire weighing 16.65 carats, to the baguette and brilliant-cut diamond openwork gallery and half-hoop, mounted in 18k white gold, ring size 5¼, with French assay mark for gold, in black suede Van Cleef & Arpels case
Signed Van Cleef & Arpels, No. ML3245 (indistinct)
Accompanied by a certificate of authenticity from Van Cleef & Arpels
Report no. 0405118 dated 1 June 2004 from the Gübelin Gemmological Laboratory stating that the 16.65 carat sapphire is of Kashmir origin, with no indications of thermal enhancement
Report no. 54512 dated 25 September 2009 from the SSEF Swiss Gemmological Institute stating that the 16.65 carat sapphire is of Kashmir origin, with no indications of heating