A LATE 18TH CENTURY CAMEO AND GEM-SET RING
A LATE 18TH CENTURY CAMEO AND GEM-SET RING

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A LATE 18TH CENTURY CAMEO AND GEM-SET RING
The layered agate engraved with the profiles of Louis XV1 and Marie-Antoinette, both facing right, rose-cut diamond crown surmount and ruby detail, the reverse with embossed flower to the wavy ribbed hoop, mounted in silver and gold, circa 1780