Diamonds. Friday , June 23rd , 2017 - 21:00:02 PM
Buying such pieces is not as simple as it looks. Judging a diamonds quality needs professional skills. Grading and certification both is necessary to find out the right piece of diamond. If you are not a professional, then you can learn the fundamentals of grading which are used to define diamond jewellery for quality.
Did you know that carbon is one of the most abundant elements found on the Earth's crust? It is found in different allotropic (structurally different) forms that can be broadly categorized as amorphous and crystalline. The most common amorphous forms of carbon are coal, coke and charcoal, whereas graphite and diamonds are the well-known crystalline forms of this element. The amorphous forms lack the crystalline structure that is found in graphite or diamonds.
The distinctive marquise shape is believed to have originated in 18th century France under the rule of King Louis XIV, when he supposedly commissioned a new shape to mimic his mistresss sultry smile. The resulting narrow oval with tapered, pointed ends was named for that mistress, the Marquise de Pompadour. Today, the marquise diamond shape is a classic option for couples interested in a stunning stone but who dont want the traditional and sometimes predictable round brilliant shape. Because of their elongated shape, marquise diamonds may also be called boat-shapes or navette diamonds.
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