Forrest Nymph Band, 10k Yellow Gold

Diamonds contain pure carbon and are the simplest of all gems. The only difference between a diamond and the graphite in a pencil is the bonding of the atoms.

Diamond is the hardest substance on earth. Only another diamond can scratch it. However, a diamond can chip or cleave if given too hard a knock, so it shouldn't be worn during strenuous work or play.

In an engagement, wedding or anniversary ring, diamonds are the established symbol of marital love. The tradition began in the 15th century, when Archduke Maximilian of Austria sealed his engagement to Mary of Burgundy with a diamond ring.