France, c. 1950s This impressive cluster ring is finely crafted in 18K yellow and white gold. The ring is centered with an oval 3.64 ct emerald of a vivid bluish green color. The emerald is surrounded by bright white brilliant cut diamonds (F-G color, SI clarity). The shoulders of the ring are embellished with six diamonds. Total emerald weight is 3.64 carats. Estimated combined diamond weight is 2 carats. Marked with eagle head French assay mark for 750 gold standard and maker’s mark. The ring is accompanied by the American Gemological Laboratories Prestige report 1124612 for the emerald. The emerald and diamond cluster measures 21 x 15 mm (13/16 x 5/8 in.) Ring size 6.25 (16 mm) resizable