Vir Jewels 10K White Gold Blue Diamond Pendant (0.12 CT) With 18 Inch Chain Save An Additional 20% USING COUPON CODE: ZBM72EGW 90 Day Warranty. Jewelry Gift Box Included 10K White Gold 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. 18 Inch .925 Sterling Silver Chain Included