Posted on November 7, 2022November 7, 2022 7.70ctw Natural Black Opal & Diamond Ring Platinum 6.2 grams. Approx 0.63 ctw of H, SI diamonds Natural opal approx ct 7.07 opal measures approx.16.2mm L x 11mm W Share this:TweetShare on TumblrPocketEmailPrint By fomalhaut66Categories: DiamondTags: diamond, Opal, Opal and Diamond Ring, ring