Nice and easy! These lovely 1930s studs are a jewelry wardrobe staple– they go with just about everything! They are perfect to throw on with a t-shirt and jeans during the day, a little black dress in the evening, a button-up and blazer for work, or even an evening gown for an elegant event! They are made of onyx, with a small single cut diamond set into a white gold star shape in the center of each. The earrings are set in 10k yellow gold. They are currently designed to be screw-on for un-pierced ears, however, we are happy to convert them into posts for pierced ears upon request. They measure about 1/2 inch by 5/8 inch.