Full Stack Hoop Earring SmallA must have for any dainty jewelry lover, these full stack dome hoops are great if you enjoy small hoops, they're fun, lightweight and chic. 12. 75mm 11. 90mm 4. 6mm Brass W 18K gold vermeil 18kt gold plated. Not flash plating, our gold plated jewels are designed with a thick coating of over 2. 5 microns of genuine gold equivalent to gold vermeil, over a brass metal base. Wear your jewels with confidence.