Gorgeous aquamarine is surrounded by round brilliant simulated diamonds (CZ) set in sterling silver (925)Gemstone information:Center Stone: AquamarineGemstone creation: SimulatedMeasurements: 8.0 x 10.0 mmCarat Weight: 2.3 ct. (approx.)Hardness: 8 (Mohs scale)►Chain length: 18" (incl. 2" extender). ✓ 100% Nickel-Free✓ Hypoallergenic✓ Free Gift Box✓ Free USA Shipping