Backing: Post Weight: 3.0 g per earring Metal: Lead free gold tone Stone: Simulated blue topaz Carat: Pear cut simulated blue topaz approx 11 carats (21 mm x 11 mm), round cut simulated blue topaz approx 1.5 carats (7.5 mm) Measurements: 31 mm (1.2 in) x 11 mm (.43 in) x 5 mm (.20 in)