Vir Jewels 0.20 CT Blue Diamond Earrings 10K White Gold 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.