Some of the other commonly known gemstones are not listed.
These may include: Peridot, Amethyst, Topaz, Citrine, Opal, , Amber, Andalusite, Beryl, Chrysoberyl, Coral, Fluorite, Iolite, Lapis, Malachite, Pyrite, Quartz, Sphene, Spodumene, Zoisite, Serpentine.
This list is updated on a yearly basis. If you strongly feel that we left out a known rare gemstone, feel free to email us.
We reiterate that the Rarity Pyramid is strictly our opinion.