Diamonds are highly sought after as jewelry and as a form of capital investment. They are also prized by the research community, but not because of their brilliance or symbolic significance — it is their physical properties that make these gems precious to scientists. Diamonds are extremely hard, have unrivaled thermal conductivity and have a broadband spectral transparency that stretches from ultraviolet to far infrared, making them the ideal material for a host of different applications. Consequently, there is a large market for synthetic diamonds: they can cut through steel as if it were paper, dig their way through the earth on the tips of drilling heads, are used as scalpels in operations and can act as bio-electrochemical sensors for detecting substances such as DNA.
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