Emerald and diamond ring

Centering a square emerald-cut emerald weighing 4.52 carats, flanked by 2 emerald-cut diamonds weighing approximately 2.90 carats, mounted in 18 karat white and yellow gold, size 7¼. 

Good condition with light wear to the mounting; evidence of sizing to the platinum shank with gold. The richly saturated, medium-deep bluish green emerald presents very minor inclusions, but essentially eye-clean. Two very small cavities and a small chip on the girdle. Please see AGL report no. CS 39166 stating that the emerald is of Classic Colombian origin; evidence of faint clarity enhancement: organic (polymer type). The diamonds are approximately H-I color, VS clarity. One diamond has strong fluorescence. Please note that the mounting is composed of platinum and 18K gold, not white and yellow gold as described in the catalogue.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

Accompanied by AGL report no. CS 39166 stating that the emerald is of Classic Colombian origin; evidence of faint clarity enhancement: organic (polymer type).