What are Cultured Pearls?

By Mary Costa on Jun 05, 2012 at 01:32 PM in News You Can Use

What Are Cultured Pearls?

I found this interesting article about the history, and making of Cultured Pearls.


Cultured Pearls Roman and Greek History

We all know that Pearl gemstone is a symbol of royalty and hence it was used  as a gift. It is mentioned in Greek and Roman History. Pearl gemstone was known  to be very expensive and it was worn with prestige in Roman era. Pearls were  actually a status symbol. It was believed in Roman history that Pearls should be  worn by people who can actually afford such expensive jewelry and hence it  became a symbol of royalty. The story goes as follows - Cleopatra who was the  last queen of Egypt had a bet with king Marc Antony saying that she could offer  the most expensive meal. Listening to this king Antony had just put a bowl of  vinegar in front of Cleopatra. And he started wondering how she could make out  the most expensive meal out of just vinegar. Then Queen Cleopatra took out one  of her pearl earrings and she put it in the sour water making the meal pretty  expensive. One pearl earring of queen was known to be equivalent two thousand  pounds of gold. Hence she made an expensive meal and won the bet over king  Antony. Pearls were given great importance in Greeks as well. Pearl jewelry was  a must in each and every wedding in Greek people. Arab people denote them as a  treasure to be kept in paradise.

How Cultured Pearls are formed?

oysterwpearlPearls are produced by mollusks, but not all mollusk produce pearls. If we  look at the scientific details of pearl producing mollusk, then it belongs to  the class Conchifera. It is known as phylum in biological terms more precisely  in Zoology. There is a Bivalia class of Mollusca family which actually produces  pearls. They are a part of Bivalia class which means they have two halves  connected together with a hinge. All the species of Conchifera phylum produce  formations which look like pearls but they are not exactly the pearls. Some of  them do form pearls. The shell and mantle are the two important parts needed to  identify a particular mollusk. Mantle tissue is more important than shell while  choosing the mollusk for pearl formation. In the Pearl trading market, there is  an incorrect belief that pearls are produced from Oysters. Even if oysters  produce pearls they are not as effective as those produced by mollusk and have  very low market value. The body structure of bivalve mollusk enhances the chances for pearl formation. It is open to environment with a continuous flow of  water from inside and outside. Unlike gastropods they are not much mobile, thus  proving ideal for pearl formation. Pearl cultivation involves various processes  such as searching good species which can produce pearls and those are bivalve  mollusk. Next comes the pearl farming which is followed by pearl nucleus  formation, harvesting and various treatments done.

Various processes of Pearl formationpearlfarming

After collecting good species of mollusks next process is of pearl farming.  Pearl farming is done on various pearl farms. In olden days, farmers used to  collect oysters from different water reservoirs and then nucleate them  accordingly. Now, farmers are using modern techniques for collecting oysters.  They collect some good quality oysters and nurture them on their pearl farm.  Their sperm and eggs are collected by farmers after which the fertilization  process is done explicitly by farmers using the sperm and eggs. Hence after  fertilization, larvae are formed and they are allowed to flow freely in water.  After sometime larvae get attached to some rock and oysters are formed. The  foreign body is inserted in the mantle tissue of oyster for nucleation process.  This has to be done by a technician. Once the foreign body is inserted then  nucleation starts and the oysters are allowed to rest for a month or so. Some  oysters recover fast while some die as well.

Resource Link: Cultured Pearl | Precious Gemstones Online Gemstones is an India based  company dealing in gemstones since years. We believe in making people's life  happy by these sacred and holy gemstones.

Article Source: http://EzineArticles.com/?expert=Ravindra_D.

Article Source: http://EzineArticles.com/6910932

Mary Costa aka Mariska

Mary Costa aka "Mariska" & Jewelry Matchmaker®

We create jewelry to match and adorn the beautiful spirit of a woman.



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