Early 20th century three stone emerald and diamond ring, c.1910, set with a 3.97ct Colombian emerald of stepped square cut, flanked by two Asscher cut diamonds of approximately 2.25ct and 1.80ct,
the emerald with canted corners, claw set between the two similarly set diamonds, pierced foliate gallery, the straight shank line-pierced to outer edge, and pierced at sides with dot and leaf band, all in platinum, accompanied by AGL report no. 1127492 for the 3.97ct emerald giving a Colombian origin opinion and that the stone shows minor oil treatmentCentral emerald 9.6 x 9.1 x 6.0mm
2.2 x 2.4 x 1.1 cmWeight: 6g
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,
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,
Early 20th century three stone emerald and diamond ring, c.1910, set with a 3.97ct Colombian emerald of stepped square cut, flanked by two Asscher cut diamonds of approximately 2.25ct and 1.80ct,