Weight: 1.0 g per earring.Metal: .925 sterling silver jewelry, rhodium electroplated.Backing: Screw.Stone: Cubic Zirconia.Carat: Round cut CZ approx 1 carat (6.5 mm).Measurements: 13 mm (.51 in) x 6 mm (.24 in) x 6 mm (.24 in)...FYI: .This item is part of our nickel free collection!..