the polished emerald of oval form fluted and mounted landscape between tapering onyx stones forming an integral design, old cut diamond line gallery and single diamond at the half-hoop point of each shoulder, each in an oblique box collet, mounted in platinum, trace of signature to back of shank 'CARTIER', serial number 02335, second number indistinct possibly 00000 overstampped, French platinum assaymark and partial workshop mark for Gustave Renault, accompanied by (PDF only of) IAJA expertise report no. XP3111-060726 signed by Olivier Bachet, confirming that in his opinion this is a genuine Cartier item from Cartier Paris Head approximately 18.5 x 10.0 x 9.0mm high
Emerald approximately 11.3mm long x 9.3mm wide x 8.9mm high Weight: 7.5g
Late 18th / early 19th century pear shaped emerald and diamond cluster ring, c.1800, the Colombian emerald of step cut and elongated outline, open set and inverted within a heart shaped border of old cut diamonds,