14K Gold Plated Sterling Silver Round Hip Hop Ice Out Nugget Stud Screw Back Earrings For Men SIZE: 12mm. These round nugget earrings are the best size for any occasion. 14K gold earrings for men fit any standard piercing post hole, and come with screw on backs. You can't go wrong with these Screw back earrings. STONE: 5A High quality Cubic Zirconia. These Hip Hop round nugget earrings have the brightest and most clearest CZ Stones on the market. Really Shine bright with these Square screw back earrings. MATERIAL: 925 Sterling Silver with 14k Gold plating.