





Everyone loves diamonds! It is the traditional birthstone for April as well as the most commonly used stone for engagement rings and wedding bands. Diamond is also the traditional gift for the 60th anniversary, and in modern times, has been added for the 10th and 30th as well.
History
Named from the Greek word adamas
, "invincible, unbreakable", diamonds have been used in jewelry and tools since the 4th century BC. They were gathered in India's rivers and streams, and coveted by royalty and the wealthy ever since. Diamonds were brought by caravan into medieval markets in Venice. The first recorded diamond engagement ring was given to Mary of Burgundy by Archduke Maximillian of Austria in 1477.
One of the most famous diamonds in the world is the 45.52ct Hope Diamond, now in the Smithsonian. There is evidence to support its origins in the Golconda mining area in India. The first record of its sale was to King Louis XIV of France in 1668. It was known as the French Blue at that time.
In the 1700s, India's diamond supply began dwindling, and Brazil became an important source. Diamonds were first found on the banks of the Jequinhonha River, by gold miners panning in Minas Gerais. Brazil was at the top of the diamond market for the next 150 years.
The beginning of the modern diamond market was in the 1860s, when diamonds were first found near Kimberley, South Africa. In 1888, DeBeers Consolidated Mines was founded by Cecil Rhodes, and by 1900, controlled 90% of the production of rough diamonds.
The largest diamond ever found was a 3106-carat rough in South Africa's Premier Mine in 1905. It was named the Cullinan. The largest stone cut from it is the 530-carat Great Star of Africa (or the Cullinan I), which now resides in the Royal Sceptre With Cross of England's Crown Jewels. Other "satellite" diamonds have also been cut from the original rough.
Metaphysical/Spiritual
Throughout history, diamond has been a symbol of stability and dependability. It has been worn to ward off the evil eye, as an antidote to poison, and to protect from the plague. Many considered diamonds to have healing powers. It also represents strength, beauty, and longevity. It is easy to see how it came by those associations, since diamonds are the hardest substance on earth.
Diamond comes in many colors, but colorless has always been the most desirable. The other colors have their own attributes: clear/white - faithfulness, purity, innocence, constancy, clarity of thought; yellow - thoughtfulness and consideration of others; blue - willpower, care for personal health; pink - creativity; black - decrease self-delusion.
Geological
Diamond is made from the element carbon. It is the only gemstone that consists of only one element, but traces of others lead to the different colors that are found. It has just recently been discovered that scientists can study the imperfections in diamonds to gain information about the formation of continents. It was previously thought that diamonds weren't a good source for this data because we use carbon-dating, but the other traces allow us to determine the age of a stone. (Fun fact: graphite is also composed entirely of carbon, but it has a different crystal structure, so it is soft enough to write with.)
Diamonds are the hardest substance on earth, 58x harder than anything else found on the planet. It is the top of the Mohs scale at 10. This makes it an excellent tool for abrasives and cutting when a stone isn't "gem-quality". These stones are known as industrial diamonds, and are much more common than gems. There is evidence of diamond abrasive tools as far back as the Bronze Age.
The largest diamond ever found is not on earth! It is a burned-out white dwarf star named Lucy. It's named after the Beatles song "Lucy In The Sky With Diamonds". Click here for some more information on Lucy: http://www.spacetoday.org/DeepSpace/Stars/WhiteDwarfs/LucyDiamondStarWhiteDwarf.html