january ✰ garnet february ✰ amethyst march ✰ aquamarine april ✰ diamond may ✰ emerald june ✰ pearl july ✰ ruby august ✰ peridot september ✰ sapphire october ✰ opal november ✰ topaz december ✰ turquoise fact : some ppl believe it is lucky to wear a gem that is linked to their birth month ! fact2 : a gem is a stone that has a beautiful color. fact3 : most gems come from rocks but there are 4 that don't: pearl, amber, jet and coral. these are softer than rock gems and are usually polished, not cut.