gemstone
Diamond (or Cubic Zirconia / Rhinestones)
Carbon (C) or Zirconium dioxide (ZrO2)
AI-generated identification · may be incorrectHardness 10 (diamond) or 8-8.5 (CZ); adamantine luster; colorless/transparent; isometric crystal system.
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Physical properties
Hardness 10 (diamond) or 8-8.5 (CZ); adamantine luster; colorless/transparent; isometric crystal system.
Formation & geological history
Natural diamonds form deep in Earth's mantle under extreme pressure and heat, brought up via kimberlite pipes; simulants are lab-created.
Uses & applications
Predominantly faceted for high-end fine jewelry, melee stones, or decorative rhinestone embellishments; industrial abrasive.
Geological facts
Natural diamonds are typically over 1 to 3 billion years old. Cubic zirconia has been synthesized since the 1970s as the premier optical substitute.
Field identification & locations
Identify using thermal conductivity testers, UV fluorescence, or examining pavilion facet reflections with a loupe.
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N/A - Set piece of jewelry, likely Amethyst or Garnet with Diamond or CZ
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Amber
Succinite (Organic Gemstone)
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Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Diamond and Gold Jewelry
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Pearl necklace
Pearl, primarily aragonite (CaCO₃) and conchiolin
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