Diamond

Diamond properties at a glance

Geology & background

Forms under extreme pressure and temperature 150-200km below Earth's surface, then brought up by volcanic eruptions.

Prized since ancient India, diamonds became symbols of power and wealth throughout history.

How to identify Diamond

• Check whether the specimen's color and texture match typical Diamond examples.
• Photograph a fresh surface in natural light and avoid shadows, glare, or wet surfaces.
• Use hardness, streak, luster, grain size, and locality together; no single trait is enough for every specimen.

Where Diamond is found

Diamond is reported from multiple localities or geological settings. Exact locality should be verified from specimen provenance, maps, or field notes.

How much is Diamond worth?

Value depends on size, condition, color, crystal quality, locality, rarity, preparation, and provenance. Treat this as educational guidance, not an appraisal.

Common uses

• Jewelry
• Industrial cutting
• Scientific instruments

Interesting facts

• Hardest natural substance on Earth
• Takes 1-3 billion years to form naturally
• Can conduct heat 5 times better than copper

Care & safety

Treat Diamond as a collector specimen unless hardness, cleavage, and fracture are confirmed.

Avoid inhaling dust. Do not cut, grind, or polish unknown specimens without eye protection and a properly rated respirator.

Related rocks & minerals

Kimberlite Igneous Rocks Garnet Semi-Precious Stones Olivine Minerals Alexandrite Precious Stones Emerald Precious Stones Ruby Precious Stones