The Semi-Precious Gemstone is hard Stones their value ranging from 6 to 9 on the Mohs scale. They are usually Crystal of various shapes having vitreous to waxy luster. These minerals are cut in Various Shapes for the purpose of selling them as Ornamental, Sculptures and other art forms. The most popular Shapes of Gemstones are Oval, Round, Cushions and some are even cut en Cabochon to give it the very popular cat’s eye shape. The two popular ways in which a Gemstone is Cut are Cabochon and Facets. In Cabochons, Stones are cut in a Smooth dome-shaped whereas facet Stones are cut with faceting machine polishing window flats.
Transparent Gemstones are usually Faceted to maximize their refractive Properties which enhance the beauty of Crystal. These Gemstones are categorized in different groups and varieties. Ruby is the Red colored corundum whereas the other shades of corundum are grouped as Sapphires.
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