18k White Gold, Black Crystal Opal and Diamond Ring. This Magnificent Black Opal is 2.08ct Surrounded by 20 Round Brilliant Diamonds That Weigh 0.40ctw @1.7-1.8mm and 6 Single Cut Diamonds in the Shank that Weigh 0.06ctw Measuring 1.3mm each. These Diamonds are Graded as G/Vs2 Respectively. Total Weight of Ring is 5.4 Grams. Current Finger Size is 6.5 and Will be Sized To Fit!