These sterling silver stud earrings come with a 4mm peridot CZ crystal in the shape of a star - the birthstone for August, they'd make a beautiful birthday gift for the August-born lady in your life. At 1.6 grams in weight, they're fairly lightweight. They come with butterfly backs. Not born in August? We have many styles of birthstone jewellery for you to choose from. Check out the full range now.