Antique French Emerald RingA striking late 19th century French cluster ring, circa 1890, crafted in solid 18K gold and set with a vivid step cut emerald at its centre. The emerald displays exceptional clarity and a saturated green hue, likely of Colombian origin, weighing approximately 0. 35cts. Surrounding the central stone is a halo of old rose cut diamonds, arranged in a navette shaped bezel measuring 12 x 7 mm. Each diamond is individually set in yellow gold, creating a