The term ‘Diamond’ is derived from the greek word ἀδάμας (adámas), meaning unbreakable. Diamonds were first recognized and mined in India along with the alluvial stone deposits of the rivers Penner, Krishna, and Godavari for at least 6000 years. Since diamonds are used as religious icons in ancient India, they are treasured as gemstones. Their popularity has risen from the 19th century because of innovation, increased supply, growth in the economy, improved cutting, and polishing techniques. Diamonds can be identified by their high thermal conductivity (900–2320 W·m−1·K−1). They have a high refractive index, but other materials have similar refractivity as… View Post