Ancient civilizations believed diamonds were either the tears of gods or splinters from falling stars.

The ancient Greeks and Romans held profound mystical views on diamonds, often associating them with the stars. Pliny the Elder, a Roman naturalist, wrote in his first-century work 'Naturalis Historia' that diamonds were the most valuable of all things in the world. He described them as 'adamas,' a term meaning unbreakable or invincible, which reflected their unique physical properties. This linguistic root eventually evolved into the modern English word 'diamond.'Beyond their celestial origins, many ancient cultures believed diamonds possessed supernatural protective qualities. Roman soldiers frequently wore diamonds as amulets during combat, believing the stones would instill courage and provide physical invincibility. This belief was rooted in the stone's unmatched hardness on the Mohs scale, where it ranks as a 10. Because nothing else could scratch or break a diamond, it was seen as a symbol of eternal strength.In ancient India, where diamonds were first traded as early as the 4th century BCE, they were often associated with lightning. The Sanskrit word 'vajra' refers to both diamonds and the thunderbolt of the god Indra. These early civilizations lacked the tools to understand carbon crystallization under high pressure. Instead, they relied on mythology to explain why such a rare and indestructible substance existed in the natural world.