These beautiful mystical blue topaz stud hoop earrings are made of 18K White Gold Filled. The (lab created) topaz zircon stones are 8mm. Brand new and never been worn. Lead and nickel free. These fine quality earrings are comfortable and perfect for all day, everyday wear, special occasions, or a special gift. Get an $18 gift of your choice in my listings with purchase of two or more items. Please send offers and questions. Topaz: 8mm or .3" x .31" Hoop: 13mm or .51" Lever Back pierced