A design that sparkles from every angle. This stunning certified diamond X3 solitaire ring (2 ct. t.w.) features a beautiful round-cut diamond at center, as well as sparkling diamond accents in an X shape in the sides of the band. Crafted in 18k white gold. 2 Carat Diamond Ring. Diamond Color Rating Code: H. Diamond Clarity Rating Code: I1. Certified Diamond Ring. Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care. All gemstone carat weights (ct. t.w.), if mentioned, are approximate; variance may be .05 carat. Ring Sizer.