M MineralystRock & Mineral Guide
Gemstone

Diamond

Diamond — reference photo

Diamond is a gemstone with the chemical formula C. It has a Mohs hardness of 10 (Mohs scale) and adamantine luster.

Diamond properties

TypeGemstone
Chemical formulaC
Mohs hardness10 (Mohs scale)
LusterAdamantine
Typical colorsColorless, yellow, blue, pink, green, brown, and others
FormationFormed under high-pressure, high-temperature conditions in the Earth's mantle
Rarity8 / 10

Mohs hardness 10 — hard

1 · Talc5 · Apatite10 · Diamond
Identifying a mineral with the Mineralyst app

Mineralyst

Wondering what you found?

Point your camera at any gemstone and Mineralyst identifies it in seconds — with guided follow-up questions for a confident answer.

  • Build a collection
  • Keep a wish list
  • 5 photos per find
  • Share with friends

Related rocks & minerals

EmeraldEmeraldFairburn AgateFairburn AgateFire AgateFire AgateHeliodorHeliodorIoliteIoliteJasperJasper