About Celtic Crosses. All our Celtic Crosses are available in a choice of gems and precious metals. You can also add your own personal meaning to any of our Celtic Crosses, creating a beautiful memory and brilliant reminder. We use only the highest quality materials to craft our Celtic Crosses with meticulous attention to detail. Our precious metals are recycled or responsibly mined. We hand-select each conflict-free gem in to perfectly complement your selection from our Celtic Crosses. The profile, textures, and details of our Celtic Crosses add individuality and style to everything you wear. When our work is done and you open that box, you'll see your design from our Celtic Crosses is even more striking when brought to life in the finest precious materials.