Very pearl jewelry center >>China cultured pearl Manufacturers,Wholesale cultured pearl Factory
      Buy Pearl Jewelry At www.vpearls.com

Posts Tagged ‘cultured pearl’

Gemstones Jewelry Care

Saturday, July 24th, 2010

Gemstones are best cleaned using the same method as pearls jewelry. It’s important to dry the gemstone completely to remove any remaining chemicals from the cleaning process.

You may also use a soft tooth brush on hard gemstones to gently scrub away additional grime. You should avoid soaking porous gemstones instead just wet another cotton or jewelry cloth and clean the gemstone. Things are needed to avoid when cleaning below:

Many metals like sterling silver jewelry and softer gemstones can be easily damaged by abrasive chemicals in certain cleaners. This is why it is always best to start your cleaning with relatively gentle methods before tackling any remaining grime and tarnish.

Do not clean your jewelry over a sink or you may find yourself frantically sourcing a plumber.

Do not under any circumstances use harsh chemicals on gemstones which are porous. Porous stones will absorb the chemicals and damage your stones. Porous gemstones are opaque gemstones like pearl jewelry, sterling silver jewelry, turquoise and opals.

Cultured pearls

Wednesday, September 23rd, 2009

A pearl is a valued gemstone that is naturally created by a marine-based organism called a mollusk.Natural pearls are extremely rare and hard to find.This is why many of the pearls that are available to consumers today are cultured pearls.

There are three types of cultured pearls: Chinese cultured freshwater pearl, South Sea cultured pearls and Tahitian cultured pearls.

Chinese Freshwater Cultured Pearls
Freshwater Pearls come in white and pastel colors from pink to purple all other colors should be considered dyed.

In 1997, artificially dyed black Chinese freshwater cultured pearls in round shapes and sizes of up to 11 mm were offered on the market in Hong Kong. Since then, large quantities have reached the international market, where they can be purchased at reasonable to low prices. They have an astonishing resemblance to Tahitian cultured pearls, as they almost perfectly replicate the green to purple overtones and are already called “peacock pearls” in the Asian pearl trade.

Several companies in Hong Kong offer the treatment and are often speaking of “laser treatment”. However, this is not true and neither is irradiation used. Although the exact method has not yet been made known, it is probably correct to assume that silver salts and other coloring agents are used.

South Sea Cultured Pearls
South Sea Cultured pearl jewelry are not treated the notable exception are “Golden” colored pearls Golden pearls are a natural South Sea color but some are dyed.

The artificial coloration of South Sea cultured pearls is a more problematic issue, as it imitates yellow and golden hues which also occur naturally the coloration represents an improvement or even a deception and it cannot always be easily distinguished from natural colors.

Since 1994, a wholesaler from New York has offered artificially colored South Sea cultured pearls on the market. He uses un drilled pearls of an originally light green or light yellow body color and otherwise good quality factors and bleaches and subsequently treats them with a chemical dye. Another company from New Jersey applies a heat treatment.

Tahitian Cultured Pearls

Most Tahitian cultured pearls are not treated the notable exception are “Chocolate” colored pearls.The method is also used for Tahitian cultured pearls, where light colored pearls of a low color range are dyed black (originally, white South Sea cultured pearls from other countries may have been used for the same purpose). Artificially dyed pearls are found in a variety of sizes and shapes, and they are above all seen in large, so-called circle shapes.