Most emeralds are heated and oiled to give it clear green color and clarity. This is an authentic Gems En Vogue emerald ring made with genuine earth mined gemstones that aren't treated. They are beautiful, just as found in the mines. This ring was crafted of high-quality precious metals and will last a lifetime. Stamped by designer and 925. Size 7 A euro shank ring has a gently squared-off bottom instead of a fully round band, which helps keep top-heavy or large center stones from spinning toward your palm. The inside circle remains round for a comfortable fit, while the flat outer edges act as bumpers against neighboring fingers. About the Designer: Michael Valitutti designs jewelry under the brand Gems en Vogue, which features European-inspired pieces with genuine gemstones set in sterling palladium alloy and 18K gold. His jewelry is inspired by art movements like Art Deco and the French Renaissance. Valitutti has a graduate Gemologist diploma from the Gemological Institute of America (GIA)