Made of 925 Sterling Silver • We use a THICK, DURABLE 14k Gold or Rhodium plating - for a piece that will last you years to come! • VERY HIGH QUALITY • Ruby stone is made of the highest grade of cubic zirconia for an authentic look! • Available in sizes 4-10 • Ring Measurements: STONE: 5mm x 3mm STONE w Side CZ STONES: 8mm x 3mm Band: 1.3mm