Buy yourself an early May birthday gift this year in the form of our sterling silver emerald CZ 4mm star stud earrings - your lucky colour as it's your birthstone! These dainty studs weigh just 1.4 grams - wear them all day long comfortably. They come with butterfly backs to keep them held in place. For more birthstone jewellery, check out our full collection - you'll find earrings, rings, necklaces and bracelets.