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Of all the natural stones jewelry, it can be subdivided into precious stones jewelry and semi-precious stones jewelry. Precious stones include: diamonds, rubies, sapphires and emeralds. In these kinds of prices are based on carat gem weighing an absolute value, and therefore often means they are talking about gemstones.
Concrete can be divided into semi-precious stones: quartz stones jewelry such as rose quartz necklace and non-quartz gemstones such as coral jewelry like coral necklace. In the quartz gemstones crystal are the most important and widest range of gemstone types, the rest are Tourmaline, Aquamarine, Peridot, amethyst, garnet, agate, etc.; non-quartz gemstones in the Department include the amber, coral, and so on.
In the classification should be noted that the broad principles of classification are mainly based on the hardness of stones, the price to distinguish, that is the more precious stones hardness, the more scarce the more expensive. However, a lot of semi-precious stones are also calculated in accordance with carat prices, such as tourmaline, hair crystal, crystal ghosts, etc. Therefore, according to the specific facts of the case. Want to know because the stones are natural products, it is absolutely the same gem does not exist, there are always other able men of the rules is always there.
Speaking of crystal jewelry, in fact most of the crystal dealers also operates a number of semi-precious stones will also be products. Many people love to general category will be referred to as crystal jewelry, in fact, just simply because the same price, the purchase at the same time to do a few hearts. Therefore, the crystal jewelry is only a kind of semi-precious stones jewelry, but not the same as semi-precious stones jewelry.