Moss agate is a truly unique gemstone unlike any other. It has a beautiful marbled effect shown by a variety of included minerals. These green and sometimes brown, black and yellow inclusions resemble moss, trees, plants and sometimes even the entire landscapes. Thanks to a creativity of Mother Nature each moss agate is one-of-a-kind. This gemstone is a fairly hard one (7 by Moh's scale). All these features make moss agate a great choice for those who're looking for a unique nature inspired ring.