Each moissanite jewelry above 0.3 carat is accompanied by a Certificate of Authenticity and a Limited Warranty Card with Gemological Research Association (GRA). Picture style: Ghost mannequin Features: Moissanite Material: 925 sterling silver, moissanite, rhodium-plated Care: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide. Imported Product measurements: 4: Circumference 1.9 in5: Circumference 2 in6: Circumference 2.1 in7: Circumf Diamond Carat Size, Stone Properties, Ghost Mannequin, Picture Style, Moissanite Necklace, Cvd Diamond, Wedding Rings Solitaire, Moissanite Earrings, Moissanite Jewelry