Emerald and diamond ring, Boucheron, circa 1910
Claw-set with a square emerald weighing 3.60 carats, to circular-cut diamond shoulders, size 511/2, signed Boucheron, numbered, French assay marks for platinum, gross weight approximately 3.31 grams, case stamped Boucheron.
Accompanied by a LFG partial report no. BD018841/1 stating that the emerald shows no indications of treatment and by a LFG report no. 349905 stating that this emerald is of Colombia origin.