Small Flat Screen Square Two Tone Yellow Gold Plated 925 Sterling Silver Mens Hypoallergenic Square 7mm 5A CZ Stone Iced Hip Hop Micro Pave Ice Out Stud Screw Back Post Earrings For Men. MATERIAL: 925 Sterling Silver with 14k Gold Plating. These two tone gold earrings are made of the finest material, making these the best silver earrings for your ears. No green skin or irritation with these gold studs, making them hypoallergenic. SIZE: 7mm. These two tone yellow gold square earrings are the best size for any occasion.