Product includes a matching box, certificate of stone properties for any moissanite jewelry over 0.3 carats, and a limited warranty. Material options include 925 sterling silver, Platinum-plated, or 18K gold-plated, adorned with a total of 1.8 carat moissanite. To maintain its quality, avoid wearing during exercise to prevent deterioration and corrosion caused by sweat. Imported with unique product measurements, including a circumference of 6.8 inches.