This 1-piece includes a matching box for convenient storage. A certificate of stone properties is provided for Moissanite jewelry over 0.3 carats and a limited warranty is included. Please contact us with any issues related to your purchase. The ring is adjustable and made with platinum-plated 925 sterling silver, Moissanite, and Zircon accent stones, totaling 2 carats in weight. To maintain the quality of the jewelry, avoid wearing during exercise to prevent a chemical reaction that could cause deterioration and corrosion over time. Imported from quality materials.