Diamond

Diamond is unbreakable. It is renowned for its hardness. It is composed of 100% of carbon element. Owing to diamonds are formed at high temperature and high pressure conditions, its array is very neat. It is the highest hardness of mineral and is high vlaue of diamond. Diamond is the durable gemstone, due to its large hardness and its great ability to refraction light . It colorless and transparent which can be decoration and engraving. Usually, one 7 grams of diamond was formed wiht 100 tons of blue mineral after cutting and grinding.

The main four important place of origin are Africa, India, Russia and South America, in whihc South Africa supply the most of gemstons. Carat is a unit of mass for gemstones. One carat equal to 0.2 gram. Most diamonds come form the ancient pluton and placer deposit of the bend of rivers. The largest diamond in the world weigh 530carat which was mounted on the imperial cane in UK. The tourists can see the tremendous diamond from The Tower of London.