Accompanying every piece of moissanite jewelry over 0.3 carat is a Certificate of Authenticity and a Limited Warranty Card from Gemological Research Association (GRA). Features include: 0.2 carat moissanite in each earring; 0.4 carat total. 925 sterling silver, moissanite, and rhodium-plating comprise the materials used. To keep the product looking its best, avoid wearing while exercising - sweat can cause silver chloride and copper sulfide to form. Measurements: 0.4 carat moissanite, 0.06 oz (1.6 g) weight.
