3.06 Carat Round Cut Black Diamond White Gold Cocktail Ring3. 06 Carat Round Cut Black Diamond White Gold Bridal Ring Gorgeous Black Diamond Ring that can transform into an Engagement ring. There is a 2. 69 Carat Round Cut Black Diamond in the center which is surrounded by 20 White Round Cut Diamonds that weigh 0. 37 Carats (Clarity Color: SI2 F). The total carat weight of this ring is 3. 06 Carats. This ring is made in 14K White Gold and approximately 4. 1 Grams. Complimentary ring sizing is available upon