Carvings are made for the last several thousand years out of gemstones and rocks. Material used for carving is most not suitable for faceted stones.For external carving material like Lapis, Turquoise, Quartz and Agates are used. For internal carvings, gem quality: Opal, Tourmaline, Topaz, Amethyst, Citrine and Amber. Carvings by hand are done in many low labors cost country around the world. Cameos and some fine internal carvings are made with semi automatic machines.