18ct White Gold Tanzanite and Diamond Drop Stud Earrings. 03-14-055 These elegant 18 carat white gold stud earrings feature 3 brilliant cut claw set diamonds set above two oval tanzanite gemstones. The earrings are completed by post and butterfly fastenings. Total diamond carat weight is 0.08 carats and the total tanzanite carat weight is 1.44 carats. The earrings are very versatile and will complement both day and evening wear. Dimensions: 10mm x 5mm. All are lovingly and securely dispatched with our elegant jewellery packaging. Matching items also available within this collection.