2008年10月27日星期一

A pearl starts growing when some

A pearl starts growing when some irritating foreign substance such as a sand grain, bit of mud, parasite or other object becomes lodged in the shell-producing gland called the mantle. Pearls formed in the soft flesh where nacre can be added on all sides are most likely to be spherical and the most highly prized. By far the great majority are flattened or variously distorted and have little value. Size, color, luster and freedom from flaws are other essential qualities. Unlike other gems, such as diamonds, pearls have an average life of only about 50 years. In time the small amount of water in a pearl's make-up is lost and its surface cracks. Because they are mostly lime, necklaces which are worn often are injured by the acid secretions of the human skin.

Though, the pearl is not technically a stone at all, it's beauty has earned it a place in the Big 5 of precious stones. Jewelry artists have long appreciated the pearl and continue to utilize its charm in their creations

Buying pearl jewelry can be fun, exciting and confusing. Whether you're considering a gift of pearl jewelry for someone special or as a treat for yourself, take some time to learn the terms used in the industry.

Pearl jewelry: pearl rings, pearl earrings, pearl necklace, pearl pendants and pearl bracelets are some of the most sought after jewelry creations. Your eyes tell you how beautiful a piece of pearl jewelry is, but how do you know you are getting your money's worth?

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