SAPPHIRE AND DIAMOND 'ISTAMBOUL' EARRINGS, CARTIER

SAPPHIRE AND DIAMOND 'ISTAMBOUL' EARRINGS, CARTIER
Cushion-shaped sapphires, tapered baguette-cut damonds, platinum and gold (French marks), 2.8 cm, signed Cartier, numbered, red Cartier case
Gübelin report: Madagascar, no indications of heating
Cartier: copy of insurance valuation; sapphires approximately 7.44 carats total, diamonds approximately 11.28 carats