gemstone
Blue Diamond
Carbon with Boron impurities (C)
AI-generated identification · may be incorrectMohs hardness 10, intense blue color, adamantine luster, isometric crystal system, perfect octahedral cleavage.
Identified More gemstone →
Explore Blue Diamond in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Mohs hardness 10, intense blue color, adamantine luster, isometric crystal system, perfect octahedral cleavage.
Formation & geological history
Formed in the Earth's mantle under extreme pressure and temperature, often 150-800 km deep, and brought to the surface via kimberlite pipes.
Uses & applications
Used in high-end jewelry, luxury collections, and advanced industrial cutting or semiconductor applications.
Geological facts
Natural blue diamonds get their color from trace amounts of boron substituting for carbon atoms within the crystal lattice.
Field identification & locations
Extremely rare natural gemstone. The visual specimen resembles man-made glass or slag rather than rough diamond crystal habit, conflicting with natural diamond morphology.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Gemstone Ring
N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
gemstone
Topaz
Al2SiO4(F,OH)2
mineral
Amber
Succinite (Organic Gemstone)
mineral
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
gemstone
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary