Rock Identifier
Diamond (or Cubic Zirconia simulant) (Carbon (C) / Zirconium Dioxide (ZrO2)) — gemstone
gemstone

Diamond (or Cubic Zirconia simulant)

Carbon (C) / Zirconium Dioxide (ZrO2)

AI-generated identification · may be incorrect

Mohs hardness 10 (diamond) or 8-8.5 (CZ); adamantine luster, isometric/cubic crystal system, colorless with strong dispersion and fire.

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Physical properties

Mohs hardness 10 (diamond) or 8-8.5 (CZ); adamantine luster, isometric/cubic crystal system, colorless with strong dispersion and fire.

Formation & geological history

Natural diamonds form 150-200 km deep in Earth's mantle under extreme heat and pressure, brought up by kimberlite eruptions over 1 to 3 billion years ago.

Uses & applications

Predominantly used in fine jewelry settings (pendants, rings), as well as industrial cutting, drilling, and polishing applications.

Geological facts

Diamond is the hardest naturally occurring mineral on Earth. However, synthetic simulants like cubic zirconia or lab-grown stones are frequently used in decorative cross jewelry.

Field identification & locations

Identified by extreme thermal conductivity, high refractive index, and scratch resistance. Common natural mining locations include Russia, Botswana, Canada, and South Africa.