the step cut emerald of square outline, bordered by old cushion cut diamonds, close collet set in silver and gold, radiating fluted decoration to the underside, a line of three graduating cushion cut diamonds to each shoulder, mounted in gold with silver to the cut down collet diamonds, in our opinion the emerald is of Colombian origin with minor traditional oil clarity treatment Cluster 10.3 x 10.5mm
Emerald approximate spread 5.6 x 5.8mm Weight: 3g
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,
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,