14k Yellow Gold 13mm Nefertiti Stud Earrings with Silicone Back (GO-487) These Nefertiti Stud Earrings Measure 13mm. 14K Studs Great Quality Jewelry! You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.