gemstone
Diamond and Gold Jewelry
Carbon (Diamond) / Au (Gold)
Hardness: 10 (Diamond). Color: Colorless (Gemstones), Yellow/Rose (Metal). Luster: Adamantine (Gemstones), Metallic (Frame). Crystal Structure: Isometric-Hexoctahedral. Specific Gravity: 3.52.
- Hardness
- 10 (Diamond)
- Color
- Colorless (Gemstones), Yellow/Rose (Metal)
- Luster
- Adamantine (Gemstones), Metallic (Frame)
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Physical properties
Hardness: 10 (Diamond). Color: Colorless (Gemstones), Yellow/Rose (Metal). Luster: Adamantine (Gemstones), Metallic (Frame). Crystal Structure: Isometric-Hexoctahedral. Specific Gravity: 3.52.
Formation & geological history
Formed under high-pressure, high-temperature conditions in the Earth's mantle, approximately 100 miles underground, and brought to the surface by deep-source volcanic eruptions called kimberlites.
Uses & applications
Primary use is in fine jewelry and decorative accessories; diamonds are also used in industrial cutting and grinding due to extreme hardness.
Geological facts
Diamonds are the hardest natural substance on Earth. Most diamonds found in jewelry were formed between 1 billion and 3.5 billion years ago.
Field identification & locations
Identify by checking for hallmark stamps (like 10k, 14k, 750) on the metal; use a diamond tester or jeweler's loupe to inspect for inclusions and light refraction characteristics.
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