Diamonds-quality counts
Written by aditruhai on March 14th, 2011Diamond name is derived from ancient Greek adamas (invincible). Diamonds have been treasured as gemstones since their use as religious icons in ancient India.
Diamonds were known before 3000 Bc, until their discovery in Brazil in 1725, India was the main source of supply. oklahoma roofing . These sources are Australia, the Democratic Republic of Congo (formerly Zaire), Botswana, Russia (Yakut), South Africa, Namibia and Angola; the first two produce large volumes of industrial diamonds.
Diamonds have become popular since the beginning of the 19th century. The growth of the global economy over the continued success of marketing and advertising campaigns led to further requests for diamond jewelry from around the globe.
There was a significant increase in the supply of production. New techniques of cutting and polishing improved ultra modern has further improved the quality and helping all designers around the world to bring exciting new designs each season.
Mined rough diamonds are often dull or greasy. Approximately 50% are considered “cutting able ‘ that are cut and polished finally set in diamond jewelry. The two most popular cuts are the brilliant, for stones thicker and the Marchioness, for those less steep. The India is the largest cutting centre in the world in Surat, Gujrat.
The dispersion of white light into spectral colors is the primary gemological characteristic of gem diamonds. Diamonds can occur in almost any color, although yellow and Brown is by far the most common. Color diamonds contain impurities or structural defects which cause staining, while pure or nearly pure diamonds are transparent and colourless. Classification by had ‘ (colorless) to “Z” (light yellow). Are typically used by jewelers around the world.
Experienced experts in the fields of Gemology have developed methods for grading of diamonds and other gemstones based on the characteristics most important to their value as a jewel. Diamonds commonly are judged by the “four Cs”: carat, clarity, color and size.
Kheri District
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January 23rd, 2012 at 8:43 am
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