Star K Sterling Silver 7mm Round Promise Engagement Ring Band Metal: 925 Sterling Silver. Dimensions: Width: 7.00 mm Length: 7.00 mm This beautiful design is part of the exclusive Star K. Jewelry collection. Star K, is a reputable American Family Business based in New York since 1986, uses only the highest quality materials, and will proudly stand behind all of her products. SIMULATED AMETHYST: The Simulated Birthstone for February. The name comes from the Greek `amethystos` meaning `sober`. A symbol of trust, since roman times, Amethyst is thought to protect against seduction and provide peace, love, and happiness. Lifetime Warranty exclusively offered by Finejewelers. High End Jewerly Box and Gift Packaging Additional Stones: (cubic-zirconia, Shape: round-shape, Color: Colorless.)