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All gemstones are discovered in mines, underwater, or many other probable areas that are carefully rescued and cut and polished to give the most cherished shape. Most of these Semi Precious Stones are used for making luxury items. In present day precious stones are diamond, ruby, emerald and sapphire because they are most expensive and rare. And semi precious stones are also valuable but depending on their color, availability and quality.

At the time of purchasing wholesale jewellery, you should minutely analyze what Precious Stones are used in the particular pieces you are going to purchase. Two samples of the same gemstone can be worth a completely different amount in terms of their particular feature and so the attraction of a particular stone varies with passing time.

Angola is definitely the Africa's second-largest diamond producer. Beneficiation in Angola has only explored 40% estimated diamond resources. Amid these mine deposits, the U2 kimberlite pipe can be a remarkably potentialdiamond development task situated from the James Bay Lowlands of Ontario, near De Beers' Victor Mine. Alluvial diamond beneficiation in Angola is one more project using the precious stones embedded in river banks, shorelines and sea floors.