Gorgeous Paraiba Tourmaline Ring ►Base Metal: Sterling Silver (925)►Plating: 14K Rose Gold ►Accented with simulated diamonds (CZ)►Average band width: 2.3 mmCenter Stone: Paraiba TourmalineColor: TurquoiseShape: PrincessMeasurements: 6.0 mmCarat Weight: 1ct. (approx.)Gemstone creation: lab-createdHardness: 7-7.5 (Mohs scale)