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WE ARE TALKING ABOUT GEMSTONES.
The first emerald mines emerged in Egypt, but no longer they are produced in that country. Emerals were traded 2,000 years before Christ, in Babylon, but were rare until the Renaissance, when mines in South America were discovered.
Today they are mainly produced in Colombia, Zambia, Zimbabwe, Tanzania, Madagascar and Brazil (in the states of Goias, Bahia and Minas Gerais).
Among the emeralds that became famous, are Kakovin, Emperor Jehangir and Devonshir.
They are usually cut in a polished faceted style, where the table (largest facet) is rectangular or square, with angled cut corners.
The first emerald mines emerged in Egypt, but no longer they are produced in that country. Emeralds were trades 2,000 years before Christ, in Babylon, but were rare until the Renaissance, when mines in the South America were discovered.
Today is mainly produced in Colombia, Zambia, Zimbabwe, Tanzania, Madagascar and Brazil (Goias, Bahia and Minas Gerais).
Rubies, like sapphire, is a variety of the mineral called corundum. Called ruby corundum of the gemological red color quality and sapphire corundum gems of any other color.
It generally forms small hexagonal shapes with vitreous luster, found in dolomitic marbles, crystals decomposed basalts and gravels. Can be confused with several gems like spinel, almandine, hyacinth, pyrope, and topaz rubellite.
When you have lower quality, is used in watches and other precision instruments, as well as in the production of laser and maser.
Emerald is one of the three most valuable gemstones (the others are the ruby and the diamond), mostly because of its color. The best quality gems, those with 5-8 carats, can be worth up to $ 5,600 per carat. Gems of the same weight with medium quality range from $ 100 to $ 580 per carat.
Ruby is also one of the three most valuable gemstones, especially the dark red stones, slightly purple. Rubies from Myanmar have the best quality (extra premium), without treatment, with 4-5 carats, worth between $ 28,000 and $ 40,000 per carat. Gemstones of bigger size have no market quote value, being the price agreed between buyers and sellers.