This article in several parts and for educational purposes only

This article in several parts and for educational purposes only.

Darya-i-Noor

diamond Darya-i-Noor is the largest pink diamond in the world. Stone estimated that somewhere carat weight of 175-195 and a light pink color. Its exact weight is unknown, wish pearl because the installation attitude pin more than 130 years. This stone is one of the most famous diamonds in the Crown Jewels of Iran and is also one of the oldest stones known to man.

De Beers Diamond

Weighing 234.65 carats by De Beers and the diamond faces seventh place in the world. He was found in De Beers Consolidated Mine in March 1888. Before cutting, a diamond weighing 428.50 carats. He was the center of ceremonial necklace as a necklace of Patiala in 1928, to be known. In 1973, wish pearl gift the canal has disappeared and is missing, then discovered the remains of a jewelry store in London in 1998, most of the big rock. De Beers Diamond was sold in 1982 for $ 3,160,000.

Young Red Diamond

De Young Red 5.03 carat red diamond, considered the third largest in the world. This diamond is not a pure red, the stone is lightly browned, they are great at that garnet ruby-like power. Since this diamond has a color special that time was sold to property sales as a red garnet. Fortunately, this beautiful gem was later found and identified, a very rare red diamond can be. Currently, wish pearl key chain the De Young Red detained at the Smithsonian in Washington, DC, and is often thought of exhibits in this museum.

In contrast to Type I diamonds, which get their color from impurities incorporated into the diamond red diamond of type II are known and the color of the plastic deformation process. They get their coloration due to structural anomalies caused by plastic deformation during crystal growth. Variations of the intense pressure of the lattice structure of diamonds and led to the formation of diamonds, pink, red, brown and color.

Dresden Diamond

The largest green diamond in the world of nature is Dresden Green. It's called "green apple" color and weighs 40.70 carats classified. Gemological Institute of America examined the stone in 1988. Dresden Green Diamond was found not only exceptional quality, but also a rare type IIa diamond and is considered the best and biggest natural green diamond ever found. Dresden Green gets its name from the capital of Saxony, where he was open to more than 200 years. The first known reference to the existence occurs in the post Boy, the new film in London in 1700. The diamond was sold in Switzerland in 1997 for $ 715,320.