Large oval opal with fiery flashes of green, pink, and red, set in a white gold bezel with a miligrain finish. The center oval opal measures apx. 10 X 14 X 5mm and is estimated at 4 carats. The opal is surrounded by 10 round brilliant cut diamonds, set in individual four prong settings, estimated at .05 ct. each, 0.50 ct. total diamond weight. Diamonds are a super white G-H color and SI2-I1 clarity. The ring is a finger size 6.75, and it weighs 4.35 grams. This estate vintage ring is in excellent condition. Vintage circa early 20th century. Please view photos closely. As is.