SAPPHIRE AND DIAMOND NECKLACE, RENÉ BOIVIN
Circular-cut sapphires and diamonds, with revolving central roundel, gold (French marks), inner circumference 36.0 cm, signed R. Boivin
SAPPHIRE AND DIAMOND NECKLACE, RENÉ BOIVIN
Circular-cut sapphires and diamonds, with revolving central roundel, gold (French marks), inner circumference 36.0 cm, signed R. Boivin