BOUCHERON Platinum ring, set with a cabochon emerald cut in a sugar loaf shape, with six old-cut diamonds. Signed. French work of the years 1925. Finger size : 47/48. Gross weight: 3.5 g (flush frosts, chips) The emerald is accompanied by a GEM-Paris pre-report (2023) attesting : Colombia origin, moderate oil. Dimensions: 10.6 x 9.9 x 8.7 mm approximately A Boucheron 1925 Colombian (lab. moderate oil) emerald and diamonds ring