Are Diamonds Really Forever? Over time, diamonds form crystals that are squeezed and heated, weakening molecular bonds. Many diamonds end up with rounded shapes rather than being sharply defined.

What If Everything You Think Know About Diamonds Is a Lie? Are diamonds really a girl's best friend?

Lab-made diamonds

Why Leonardo DiCaprio is backing man-made diamonds

Why Leonardo DiCaprio is backing man-made diamonds

Why Leonardo DiCaprio is backing man-made diamonds

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Leo Invests in Startup 'Growing' Diamonds in a Lab Not only will these diamonds be real, they’ll also be up to a whopping nine karats, its creators say.

Can Diamonds Detect Cancer? Diamonds aren’t just for jewelry anymore. The precious stones are effective at detecting early-stage cancerous tumors.

Sotheby's 'perfect' 100-carat diamond could fetch $25 million - CNN.com Paddles at the ready! One of the world's largest flawless diamonds is about to hit the auction block.