Agate is available in a remarkable variety of colors and textures. Agate Quartz is valuable now and has been throughout history as an amulet, and it's still one of the most popular gemstone pieces of jewelry. StarGems offers Agate in many forms all of which have different appearances, qualities, and sizes to provide for buyers, designers, and collectors. Our inventory includes a wide range of Agate Geodes, Fire Agate, Agate, Nanjiang Red Agate and Dendritic Agate. Many people aren't aware of Birthstones for those who were born on particular days, but those who know will tell you Agate is to be worn by those who are born of Fridays.