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About precious and semiprecious stones

About properties of gemstones: announcements



Emerald

Emerald

The emerald is a variety of beryl with a saturated velvet green color, sometimes even with the light bluish tint. Pure beryl is a colorless, and acquires its color by the elements in its structure that are responsible for coloring. The green color of Emerald is formed due to the impurities of the chromium Cr...

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Ruby

Ruby

The natural Ruby is the most expensive gem in the world. A ruby of perfect quality from Burma will cost more than diamond with the same quality and weight. That's because perfect rubies of large size are rarely found in the nature. But, as in the case of other natural gems, the low-quality ruby crystals, unsuitable for cutting, cost only a few dollars per carat. Generally, these are opaque stones...

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Sapphire

Sapphire

The sapphire - blue or dark blue gem-quality corundum, the stone of high value, you can say of the highest class. Actually, it can be not only blue. It's just like when it comes to a sapphire, people imagine a bright blue gemstone. The sapphire is characterized by unusual strength and hardness that makes the stone long-lived and resistant to external effects...

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Spessartine

Spessartine

There, where river Main skirts the Alpine crest named Spessart peculiar garnets have been found since ancient times. Colored in warm tints they seemed to glow from inside like a ripe tangerine. The stone was called the same – the tangerine garnet – until a French mineralogist François Beudant restored justice...

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Tanzanite

Tanzanite

Tanzanite is a natural stone, as the neon variety of paraiba tourmaline, it's one of the youngest representatives of gemstones on the jewellery market. Of course, it's not wrapped in plume of myths, legends, and miraculous properties attributed to it as it happens in case of its' "elder fellows"...

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Tourmaline

Tourmaline

The stone of tourmaline can be expensive, can have affordable price and sometimes valued by a huge amount of money. The tourmaline acquired its properties of price plasticity just recently. In the past, it was mined in small quantities transported from afar, sold exclusively to grand seigneurs, and therefore was highly appreciated...

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