The Value Of Precious Stone
A precious stone is a mineral which is adaptable for jewelry or ornamental purposes, known to possess beauty, hardness and rarity.
The transparency, color or colorlessness, and brilliance or softness of luster are the main factors which establish the beauty and value of a precious stone. A mineral must be hard in order to assume a high and lasting polish. In the estimate of worth, many stones that would otherwise be highly valued are low priced because they do not possess sufficient hardness to endure the wear and friction that a precious stone is subjected to. In determining value, the rareness of precious stones also has a powerful effect. Crocidolite, for example, which is commercially known as tiger-eye, has been sold in the past years by the karat, and has been a commonly used material for making fine jewelry. Things are becoming a little bit different, though, since this material has become quite plentiful and is no longer classed among more valuable gems. Like chalcedony and onyx, though, it works well for cameos and intaglios. In determining the market value of precious stones, changes in fashion also have a great impact. A notable difference in the value of stones such as amethysts, topazes, cat's-eyes, aquamarine, alexandrite, and even emeralds and opals, has been caused by their neglect in favor of other gems, Diamonds, emeralds, rubies and sapphires are known to be the most precious stones. Often being classed among precious stones, the pearl must also not be forgotten, since it is in such high demand on the market worldwide. But even though it is not a stone, there is no doubt of the esteemed place it occupies in the jewelry community.
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