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Precious Gemstones
LUXURY HANDMADE ENGAGEMENT RINGS AT ARLINGTON & CO.
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Rubies are the red variety of a mineral called Corundum. (The same family as sapphires). Natural occurring rubies are very rare and extremely rare in large sizes. They can be found in many regions around the world from India, East Africa, South America, and a few deposits in the United States. Colour: pinkish red or deep, rich red colour Hardness: 9 Sapphires are any colour of the mineral corundum other than red. The most desirable sapphires are generally those with an intense blue colour with plenty of sparkle and life, however, they can also come in an assortment of colours such as pink. They can be found in Brazil, Tanzania, Sri Lanka, Kashmir, Thailand, Madagascar and Australia. Colour: Shades of blue, pink, yellow & other various colours. Hardness: 9   Diamonds come in all colours, however, natural Fancy Colour Diamonds are rare and can be very expensive. One out of 10,000 normal diamonds is a fancy colour diamond. The colour of a fancy coloured diamond is measured differently to a normal diamond. The grading scale is based on the intensity of the colour. The GIA  fancy colour grading scale is: Faint, Very Light, Light, Fancy Light, Fancy, Fancy Intense, Fancy Vivid, Fancy Deep and Fancy Dark. Hardness: 10 Emeralds are part of the Beryl family. Clear stones with vibrant colours command the highest prices. They can be found in Brazil, Pakistan, Russia, East Africa, India, Madagascar and Columbia, at this point in time the best emeralds come from Colombia. Colour: Emeralds come in many shades of green and bluish green. Hardness: 7.5-8
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