18ct White Gold Tanzanite Diamond Oval Stud Earrings. 03-14-063. These elegant 18 carat white gold stud earrings features two stunning oval cut tanzanite gemstones totaling 0.47cts, framed by 0.07cts of sparkling diamonds. The earrings are completed by secure post and butterfly fastenings, perfect for any occasion. We have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other emerald and diamond pieces online and in store to compliment these earrings. All are lovingly and securely dispatched with our elegant jewellery packaging.  Dimensions: 6mm x 5mm