Florence | Edwardian Opal Ring in 18k Gold, c.1910'sMeet Florence, An Antique, Five Stone Opal Ring Crafted in 18 karat yellow gold, this delicate Edwardian era ring is prong set with five natural white crystal opal cabochons. The opals display a fine variety of color play ranging from red and blue to green and yellow; all of the stones are in excellent condition for the ring's age, with one end stone appearing to be set by epoxy, rather than the prongs. Approximate default ring size 6. 25 US. Check