Item Specifications: Metal Type: Sterling Silver Metal Stamp or Hallmark: 925 Metal Purity: 92.5% Sterling Gemstone Type: CZ, Simulated Sapphire Center Stone Cut: Round Center Stone Color: Simulated Blue Sapphire Side Stone Color: Clear Gemstone Cut Grade: Ideal Gemstone Clarity: Flawless Face Measurements From South To North: 4mm (0.21 inch ) Band Thickness: 2MM Finish: Rhodium for Anti-Tarnish Finish: Black Gold Rhodium