About GemstoneDB

Comprehensive gemstone database with 108 curated stones. Data covers mineral group, Mohs hardness, color varieties, birth month, and natural history.

Each gemstone page lists its mineral group, its hardness on the Mohs scale, the colors it occurs in and the month it is a birthstone for where applicable, followed by notes on its formation, sources and famous examples. Other stones in the same mineral group are linked from each page.

Browse all stones on the homepage or use the search box to find a gem by name, color or group. The FAQ and blog cover hardness, rarity, treatments and buying advice.