Gorgeous cocktail ring by Van Cleef & Arpels, Paris, circa 1980, crafted in solid 18K yellow gold with high polish. Features a central 0.25 ct round brilliant diamond (E color, VVS clarity) in four-prong setting, flanked by 16 pavé-set round brilliant diamonds (0.80 ct total, E color, VVS clarity). Topped with a square natural black onyx element mounted with a concealed screw. Measures 20 x 9 mm (0.79 x 0.35 in), rising 6 mm above the finger, size 7.75 (resizable). Weighs 4.95 grams. Stamped with French assay marks, maker’s mark, serial numbers, and signed “VAN CLEEF & ARPELS .750 86766.XL.” Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. 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.