Platinum 850 ‰ ring formed of a large rectangular plate centered with an oval emerald of +/- 3 carats in a surround of old-cut and half-cut brilliants. The emerald is accompanied by its LFG certificate dated 4/11/25 stating: natural emerald from Colombia, minor oil, transparent opacity, dimensions: 15.9 x 8.3 x 3.9 mm. French "Belle Epoque" circa 1910-1920 PB. 6 g -TDD. 55