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diamond engagement
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or for Industrial |
ewelery or for Industrial ApplicationsDiamond is the hardest known natural material. Its hardness and high dispersion of light make it useful for industrial applications and jewelery of course.They make excellent abrasives because they can only be scratched by other diamonds, Borazon, ultra hard fullerite, or aggregated diamond nanorods, which also means they hold a polish extremely well. Approximately 26,000 kg are mined annually, with a total value of nearly ��4.4 billion, and about 100,000 kg are synthesized annually.The name diamond comes from the Greek adamas which mean invincible. They have been treasured as gemstones since their first use as religious icons in India and usage in engraving tools also dates to early human history. The popularity of diamonds has risen since the 19th century because of increased supply, improved cutting and polishing techniques, growth in the world economy, and innovative and successful advertising campaigns. They are commonly judged by the foureStatus
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