100% permanent non-tarnishing precious metal rhodium protection. Ring Features: -Genuine.925 sterling silver-8.70 carat cubic zirconia solitaire stone-Approximately 7/8" x 1" x 2/3" (varies slightly by ring size). Each ring comes specially gift boxed, FREE. All stone and ring weights are close professional approximates. RING LIFETIME GUARANTEE! against excessive wear, breakage or loss of a stone!