Browse Gemstones
Explore our comprehensive gemstone database organized by scientific classification, gem family, or unique optical phenomena.
By Mineral Class
Scientific classification by chemistry and crystal structure. Silicates, oxides, carbonates, and more.
By Gem Family
Related gems grouped by mineral species. Corundum, Beryl, Tourmaline, and more.
By Phenomena
Unique optical effects like asterism, chatoyancy, color-change, and play of color.
Featured Mineral Classes
View all 12 classes →Silicates
9
Largest mineral class, containing silicon-oxygen tetrahedra. Includes tectosilicates (quartz, feldspar), nesosilicates (olivine, garnet), cyclosilicates (beryl, tourmaline), inosilicates (pyroxenes), sorosilicates (epidote), and phyllosilicates (serpentine).
Oxides
4
Compounds of oxygen with metals. Includes important gem minerals like corundum (ruby, sapphire), chrysoberyl (alexandrite), spinel, and hematite.
Carbonates
5
Minerals containing the carbonate ion (CO3). Includes calcite, aragonite, malachite, azurite, rhodochrosite, and smithsonite.
Sulfides
2
Compounds of sulfur with metals. The gem mineral sphalerite belongs to this class.
Featured Gem Families
View all 22 families →Beryl Family
Beryl
Includes emerald, aquamarine, morganite, heliodor, goshenite, and red beryl.
Carbonate Gems
Malachite, azurite, rhodochrosite, smithsonite, and other carbonate minerals.
Chalcedony Family
Quartz
Cryptocrystalline quartz including agate, jasper, carnelian, onyx, and chrysoprase.
Chrysoberyl Family
Chrysoberyl
Includes alexandrite (color-change) and cats eye chrysoberyl (chatoyant).