Ships within 1 day. Lovely blue diamond marquise ring in .925 sterling silver with rhodium. The sparkling natural 1/20 cttw round blue diamonds are irradiated. The width of the ring is 16 mm. The ring is made of 5 diamonds set in prong setting. The ring is available in multiple sizes. Gift box is included with purchase of this ring. Stone Type - Natural Blue Diamond. Metal - 925 Sterling Silver. Number of Diamonds - 5. Diamond Cut - Round. Total Diamond Carat Weight - 1/20 cttw. Diamond Clarity - I1-I2. Vir Jewels Sterling Silver Statement Ring For Female Adult. Birthstone Month - April. Natural diamonds are treated by irradiation to produce a variety of fancy colors including hues of blue. This process is permanent and does not alter any other property of the diamond except the color.