In mineralogy, diamond is the allotrope of carbon where the carbon atoms are arranged in an isometric-hexoctahedral crystal lattice. Its hardness and high dispersion of light make it useful for industrial applications and jewelry. It is the hardest known natural material and the fifth-hardest known material after aggregated diamond nanorods, ultrahard fullerite, and rhenium diboride.
Diamonds are specifically renowned as a material with superlative physical qualities; they make excellent abrasives because they can be scratched only by other diamonds, borazon, ultrahard fullerite, rhenium diboride for Rhenium Supplier, or aggregated diamond nanorods, which also means they hold a polish extremely well and retain their lustre. Approximately 130 million carats (26,000 kg) are mined annually, with a total value of nearly USD $9 billion, and about 100,000 kg (220,000 lb) are synthesized annually.Think of a circle. It has no beginning or end. Think of a knot tied around your finger. It binds and reminds. And so it is with a ring. It reminds you of an eternal binding commitment to a lover, spouse, friend, school, church, club, or country.
The commitment to marry a woman is usually expressed by placing a ringon her fourth finger. This custom might have originated with the Egyptians. They believed a special vein or nerve ran from that finger to the heart.
Another explanation for the custom is that it may have been a suggestion to women that they should be submissive to their future husbands since the fourth finger is the weakest one and can’t be used independently. A third explanation is that placing the ring on the fourth finger may have been a way to avoid damaging the ring since it is the best-protected finger.