within a square border of old single-cut diamonds, tapering fluted shoulders and reeded shank, pierced key pattern to the gallery, mounted in platinum, apparently unmarked, accompanied by AGL report no. CS61693 giving the Colombian origin opinion for the emerald and that it shows no evidence of clarity enhancement ('no oil')Cluster 1.1 x 1.1cm / 7/16 x 7/16''Weight: 4.5g
Antique emerald and diamond five stone ring, c.1850, claw set with graduated square cut corner step-cut stones, carved gold sides, total emerald weight approximately 2.75cts