Hence its value is entirely a product of how it is regarded by humans. Diamonds have aura Diamonds have aura. A license, which is more or less, legitimized by being given a nice Greek name. We were told, in high school perhaps, that hyperbole was a figure of speech, a kind of metaphor, though we knew that it was just another name for exaggeration. A historical examination of the hyper inflation of the value of the diamond is not our goal here, and I have to confess that I know very little about that history.
Uncut diamonds are for the most part indistinguishable from other stones.
Properly cut diamonds are quite attractive. Most of them come in various hues, yellow, blue, and so forth. They are the hardest substances known, harder by far than the second hardest substance which is carborundum. Physically they are very hard rocks, and they refract light in a way, which intensifies the electromagnetic rays somewhat more effectively than zirconia. Their value is conferred on them culturally, psychologically, mentally, emotionally.