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  1. How Are Diamonds Formed - Geology In

    Diamonds form deep in the mantle and reach the Earth’s surface through rare, powerful volcanic eruptions. These eruptions are crucial for transporting diamonds quickly to the surface, …

  2. How Do Diamonds Form? | They Don't Form From Coal! - Geology.com

    Geologists believe that the diamonds in all of Earth's commercial diamond deposits were formed in the mantle and delivered to the surface by deep-source volcanic eruptions.

  3. How Are Diamonds Formed? 10 Fascinating Scientific Facts

    Jul 16, 2025 · How are diamonds formed? Explore their fascinating billion-year-old origins from deep in the Earth and debunk myths with scientific facts.

  4. How Are Diamonds Made? | Crystal, Pressure, & Graphite

    Nov 12, 2025 · Over billions of years, carbon atoms bond in a crystal structure that results in the hardest known natural substance. These diamonds are then brought closer to Earth’s surface …

  5. Where Are Diamonds Found on Earth and How Do They Form?

    Aug 29, 2025 · Diamonds originate deep within the Earth’s mantle, at depths ranging from 150 to 200 kilometers (90 to 125 miles) below the surface. Some rare diamonds, however, can form …

  6. How natural diamonds are formed over billions of years

    Jul 29, 2025 · Learn how natural diamonds are formed deep within the Earth over billions of years, making each stone rare, authentic, and rich in natural wonder.

  7. How Diamonds Are Formed Deep Inside the Earth

    This documentary explains the science behind diamond formation deep inside Earth’s mantle.In this science-rich documentary, we uncover the real story of how simple carbon atoms are...

  8. The Science Behind Diamond Formation | Diamond Buzz

    4 days ago · Diamond formation is a rare geological process that transforms carbon into the hardest natural material under extreme pressures and temperatures deep within the Earth. …

  9. How Are Diamonds Formed? The Fascinating Journey from Deep Earth

    Jun 4, 2024 · Diamonds are formed deep within the Earth's mantle, at depths of 140 to 190 kilometres (87 to 118 miles) below the surface. The high pressure and temperature conditions …

  10. How Are Diamonds Formed: A Gemmaphile’s Guide

    Aug 7, 2025 · Discover how diamonds form deep within the Earth over billions of years, and how lab-grown diamonds are made using modern technology.