Vintage Diamond Inlay Ring. A brilliant cut bezel hexagon diamond is set in the center. Diamonds are approximately 3.3 - 3.4 mm. Inlay Style — Black onyx and mother of pearl are crafted on both sides of ring. The combination of yellow gold, sparkly diamond with black and white colors created a stunning contrast that is sure to catch the eye. Heavy Gold!!! Total weight is 3.5 grams. Hallmarks 585 14k. Size 6.5 In very good condition!!