Gem Stone

Gemstones are mineral crystals or organic materials that are cut and polished to be used in jewelry or decorative items. There are many types of gemstones, each with unique properties, colors, and meanings. 
Here is a list of some popular gemstones:
Diamond, Ruby, Sapphire, Emerald, Amethyst, Aquamarine, Topaz, Garnet, Opal, Pearl, Turquoise, Lapis Lazuli.