Contemporary Italian designer piece, carefully crafted with an intricate structural pattern in solid white gold of 18 karats. It is mounted on top in a bezel setting, with a large oval cabochon cut (28 x 21 x 12 mm) of a natural black onyx of 50.41 carats. The center onyx is surrounded by 58 round brilliant cuts of natural diamonds, 1.16 carats, F/G color, VS-2 clarity. Has a total weight of 17.95 grams and the actual size is 6.25, sizable. The top view measurements are 34 mm by 27 mm (1.34 x 1.06 Inches) and raise 15 mm over the finger. Stamped, with the maker's logo mark, the italian hallmark for the assay of the gold and signed, "R&CO 18 KT" Very good conditions. Upon Request, Auction House may provide ring resizing or/and appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.