Are Diamonds Really Forever? Quantum Mechanics says yes

By Allison Kubo Hutchison Synthetic diamond created using vapour deposition process. Steve Jurvetson, Apollo synthetic diamond, CC BY 2.0 In late 1940, the Debeers Diamond company started using the slogan "Diamonds are forever" to popularize diamond engagement rings. What they didn't know is that in terms of quantum mechanics that might be true. Diamonds are formed of pure carbon with the atoms arranged tetrahedrally in a strong, rigid crystal structure. They are the hardest known material meani...