Hard to tell but if the earrings are not antique, they are close to 100 years old. They are marked 14k and together weigh 1.6 grams. They are for pierced ears and have screw backs for security. Set is each earring is a round 3.0 mm European cut natural diamond. The two diamonds have an approx total weight of .20 cts. The diamonds are VS 2 and I / J color.