14K Yellow Gold Cushion Cut 2.00 Carats Tanzanite Stud Earrings Natural Tanzanite, Cushion Cut, 6 mm, 2.00 Carats Total Weight, Bluish Purplish Hue with Brilliant Sparkle Earrings are made of 14 Karat Yellow Gold Earrings Feature Stud Posts with Secure Friction Backings Exclusive Craftsmanship and Styling Gift Box and 30 Day Return Policy All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.