Art Deco emerald and diamond ring, the emerald-cut Colombian emerald 4.46ct, flanked by step cut triangular diamonds, all bordered by baguette and trapezium cut diamonds,
the border line forming a strapwork overlap at the half hoop, hear-scroll pierced gallery, emerald bracket-claw set, the diamonds millegrain set, the shank engraved to three-quarter back with quatrefoil and laurel band, mounted in platinum, stamped 'PLAT', accompanied by AGL report no. 1122858 for the emerald giving a Colombian origin and that the stone shows minor oil clarity treatmentLength of head 1.5cm / 5/8''
Emerald 11.85 x 9.77 x 5.21mmWeight: 6g
Victorian cabochon emerald and 18ct gold ring, London (date mark is either 1878 or 1898), the oval 6.49ct Colombian emerald open collet set to a simple tapering gold mount, D shaped shank, accompanied by AGL report no. 1118060 giving the Colombian origin opinion and that the stone shows minor clarity treatment of a traditional type (oiling)
Art Deco emerald and diamond cluster ring, c.1925, of scalloped edged oblong outline, centred by a cut-corner rectangular emerald, 1.13ct, bordered by twelve small round brilliant cut diamonds, emerald line shoulders extending from the central emerald, collet set with trace of millegrain work
Art Deco emerald and diamond ring, the emerald-cut Colombian emerald 4.46ct, flanked by step cut triangular diamonds, all bordered by baguette and trapezium cut diamonds,