WHAT'S INSIDE: GEOLOGY

Geology is the study of the composition and physical properties of rocks, minerals, gems and other related earth materials, including diamonds and crystals. Scientists gain an understanding of the Earth's history by studying its composition.
  • Geologic Processes
  • Geologic Time Scale
  • Minerals
  • Paleontology

FEATURED: GEOLOGY

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Diamond engagement rings. Diamond anniversary bands. Diamond earrings and necklaces. And now, the right-hand diamond ring! The four Cs -- cut, clarity, carat and color. Find out what the fuss is all about.

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