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Gold has been valued as a global currency
Gold has been valued as a global currency from thousands of year, a commodity, an investment and simply an object of beauty. While a sustained price rally, underpinned by the fact that demand consistently outstrips supply, is clearly a positive factor in this resurgence.This website provides you with the background to these reasons and describes the defining characteristics of the gold market from an investor's point of view. As financial markets developed rapidly during the 1980s and 1990s, gold receded into the background and many investors lost touch with this asset of last resort. There are many reasons why people and institutions around the world are once again investing in gold.
Colored diamonds are also available in the market
Pure diamonds are the diamonds that are typically on display at jewellery stores. Most people have at least a passing familiarity with what diamonds tend to look like. There are no impurities at all in the pure diamonds. Beautifully glistening and sparkling, the clear appearance of the gemstone is known as the stone of choice for wedding rings and engagement rings.Other types of diamonds are available in the market and they are colored diamonds. There are no impurities at all in these diamonds, and the gemstones are colorless and transparent. To pieces that feature these luxurious colored diamonds and to great effect Designer jewellers apply their skill. What gives certain diamonds their color are actual impurities and defects to the structure of the stone which impede or help in light absorption, which causes certain colors to be seen by the human eye.
Gemstones are identified by gemologists
Gemstones are identified by gemologists. The first characteristic a gemologist uses to identify a gemstone is its chemical composition. Gems are characterized in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture, and luster. They may exhibit pleochroism or double refraction. Who describe gems and their characteristics using technical terminology specific to the field of gemology.Next, many gems are crystals which are classified by their crystal system such as cubic or trigonal or monoclinic. They may have luminescence and a distinctive absorption spectrum. For example, diamonds are made of carbon (C) and rubies of aluminium oxide (Al2O3). Another term used is habit, the form the gem is usually found in. For example diamonds, which have a cubic crystal system, are often found as octahedrons.
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