This is for a ladies size 6 3/4 modern tested 18k yellow diamond Natural Amethyst Quartz gorgeous gemstone ring. The center has a beautiful Purple color, top quality, transparent in clarity, excellent faceted oval cut Amethyst Quartz gemstone measuring and weighing approximate 7.9 mm x 5.9 mm x 3.8 mm totaling .85pts. There are six, four-prong set excellent round brilliant cut diamonds measuring and weighing approximate 2.0 mm .03 points each totaling .18pts. The diamonds are SI1 Clarity, J Color, excellent cuts. Approximate total diamond weight for this ring is .18pts ctw and Amethyst gemstone .85pts ctw. The ring has a single Amethyst gemstone, diamond shanks, high polished band and open under gallery. Base of band measures approximate 1.8mm and widest point at diamond shanks 5.5mm. Finish of this very well made Amethyst gemstone, diamond ring is excellent, condition very good and weighs 3.6 grams.  The Amethyst has a red, blue undertone and it's beautiful .All items evaluated by a Graduate Gemologist (GIA). Diamonds, gemstone weights and measurements are approximated. Thank you, for further questions contact us.