Harkening back to antique rings found at swap meets and on your grandpa's hand, our signature signet style is designed to be well worn. Made with either sterling silver, 14k or 18k gold, the ring will only get better with age. Pinestone, scientifically named Pinolith, is an extremely rare stone consisting of Howlite, Dolomite and Graphite that takes its name from its pine nut shaped crystals. No two Pinestones are the same and each has its very own, one-of-a-kind patterns. The stone symbolizes imagination and creativity.