Designed in new York city by the jewelry designer's La Triomphe, back in the early 1970's. This cocktail ring was crafted in solid yellow gold of 18 karats, with high polished finish,The top parts are mounted with two rectangular pieces (15 x 7 x 5 mm), carved from natural black onyx and pink salmon coral with a total weight of 12 carats. Accented in in between with 5 calibrated round brilliant cuts diamonds, 0.25 carats, F/G color, VS-2 clarity.Has a total weight of 14.9 grams and the actual size is 5 1/2. The top view measurements are 20mm by 18mm (0.79 x 0.71 inches) and raise 9mm over the finger.Stamped, with the company maker's mark of the "Arc de Triomphe", the gold assay hallmark and signed, "La Triomphe 18kt". 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.