The Greek philosopher Plato believed in life among gem and rated diamond as the noblest. Such ideas were held well into the Renaissance. )brome Cardin who, in the 16th Century, first designate( stones as "precious," believed that minerals and gems were "born" c the fluids in rock cavities.

Diamond, with its remarkable properties of hardness, dispersion and brilliancy, was also considered a strong medicine. The powder o white, flawless diamonds would, if swallowed, impart health, energy and long life. Flawed stones, however, might have the opposite effect Diamond powder was for centuries considered to be a deadly poison and the deaths of many prominent rulers and politicians were attribute to this agent.

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Diamond was supposed to have many other mystical powers. If held in the mouth, a diamond would cause the teeth to fall out. It repelled phantoms and demons, and prevented nightmares Diamond could ward off magic and protect the wearer in battle by giving courage, virtue, and invincibility.