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  1. Helzberg | Engagement Rings, Wedding & Diamond Jewelry

    Discover ethically sourced diamonds with the highest quality standards. Buy engagement rings, wedding bands and watches from Helzberg jewelry stores.

  2. Loose Diamonds: Buy Certified Diamonds Online | Blue Nile

    Discover Blue Nile’s impressive selection of certified, conflict-free diamonds. Create the diamond jewelry of your dreams with Blue Nile loose diamonds.

  3. Diamonds | Diamonds Direct

    Browse our selection of GIA-certified, conflict-free diamonds. Find the diamond jewelry of your dreams by shape, carat, cut, color, and clarity.

  4. Diamond - Wikipedia

    Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odorless, strong, brittle solid, colorless in pure form, a poor …

  5. Natural Diamonds | Diamond Stone – GIA C

    Diamonds are the hardest material on earth: 58 times harder than anything else in nature. Fifty light years from earth, this star is a 10 billion-trillion-trillion carat diamond. The average yield in most …

  6. Diamond Jewelry | Tiffany & Co. US

    In their hands, exceptional diamonds are transformed to unleash intense vibrancy and light. Explore our coveted collection of everyday diamond jewelry and statement designs to be treasured for …

  7. Diamonds Collection | GIA-Certified Loose Diamonds - Dunkin's Diamonds

    Explore GIA-certified, conflict-free loose diamonds at Dunkin’s Diamonds. Shop online or in-store for quality stones and custom jewelry you’ll cherish forever.

  8. Buy GIA Certified Loose Diamonds Online | Adiamor

    Buy GIA certified loose diamonds online at Adiamor. We have over 150k GIA certified diamonds, free overnight shipping, diamond price match & a 30-day return policy.

  9. Diamonds | Nordstrom

    Find a great selection of Diamonds at Nordstrom.com. Top Brands. New Trends.

  10. Definition, Properties, Color, Applications, & Facts - Britannica

    Nov 19, 2025 · A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, …