A SAPPHIRE, ROCK CRYSTAL AND DIAMOND RING, BY RENÉ BOIVIN
Centering a cabochon sapphire, set within a frosted rock crystal hoop, with diamond-set shoulders, circa 1933, ring size 5 ½
Unsigned
Accompanied by certificate of authenticity dated 2017 from Françoise Cailles.
A SAPPHIRE, ROCK CRYSTAL AND DIAMOND RING, BY RENÉ BOIVIN
Centering a cabochon sapphire, set within a frosted rock crystal hoop, with diamond-set shoulders, circa 1933, ring size 5 ½
Unsigned
Accompanied by certificate of authenticity dated 2017 from Françoise Cailles.
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