Precious gemstone jewelry will last a life time.

Diamonds are the hardest natural substance known to man, they were first discovered about 6,ooo years ago and were all ways considered to be a precious gemstone, the popularity of diamonds has risen since the 19th century because of increased supply, improved cutting and polishing techniques, and this combined with its exceptional luster and brilliant fire, has made it the most highly prized of all gems.Rubies the name given to red, gem quality (corundum), is one of the best gemstones for jewelry settings.Historically gemstones were classified into two categories, precious stones and semi-precious stones, in this article we will talk about traditional precious stones. There are four stones that are classed as precious they are diamond, ruby, sapphire and emerald, all other gemstones are classed as semi-precious.Apart from diamond, ruby, sapphire and emerald, amethyst was considered to be a precious gem until the discoveries of bulk amethyst in Brazil in the 19th century. Also pearl can be classed as a precious gem but (strictly speaking it is not a gemstone).Today many gemstones are used in the most expensive jewelry depending on the designer and fashion trends and availability of gemstones, never the less diamonds, rubies, sapphire and emeralds still have a reputation that exceeds all the other gemstones.