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About Freshwater Pearls

One Of A Kind Handmade Beaded Jewellery With A Difference by Heart2Heart Creations.

 

The pearl, with its outstanding lustre and mesmerizing iridescence, has been a highly prized

and sought after gem.   Over the centuries there have been numerous descriptions and

pictures of pearl jewelry in society.   These can be found in the many cultures from China to

Greece going as far back as 5,200 years.   Natural Pearls such as Freshwater, Saltwater,

Tahitian, Akoya and South Sea to name a few.

      

           

Pearl Timeline

5,200 Years Ago

Earliest known use of mother-of-pearl in jewelry is recorded in Egypt, where it was used to

make beads and cartouches.

4,000 Years Ago

Chinese historical texts begin mentioning pearls.  

Specifically, freshwater pearls were mentioned to have been found in the river Hwai.   

They were described as “not quite round”.

3,000 Years Ago

Earliest mention of pearls in India, specifically in the Rigveda the oldest of the Vidas.

2,550 Years Ago

In Ceylon, which is now known as Sri Lanka, a King is recorded sending pearls to his

father in law in India.

2,500 Years Ago

The Atharaveda in India mentions a pearl necklace used as a Talisman in India.

It describes a necklace which would have been made of 9-11mm pearls.  

Quite an exquisite Pearl Necklace today, let alone at that time.  

Persia was a major source of pearls for Greece. A pearl necklace from Greece, made

of natural pearls and gold 2,300 years ago, was on display 100 years ago at the

Metropolitan Museum of New York.

2,400 Years Ago

Oldest known pearl necklace still in existence comes from a Queen’s tomb in Ancient Persia. 

This pearl necklace has 3 rows of 72 pearls each and is known as the Susa necklace.

1,400 Years Ago

Filipinos are described selling Chinese pearls in ancient Chinese documents.

17th through to the 19th century

European royalty regularly wore pearl jewelry in every possible way.  

In the 19th century when pictures were becoming more popular, examples of pearl jewelry

can be found constantly among the wealthy.  

At the end of the 19th century, the ancient pearl trade ended.

Natural pearls would no longer being traded and sold as they used to, and not long

afterwards, the cultured pearl market emerged.

 

           

 

Pearls and Mythology

   

The Egyptians were among the first in recorded history to prize the pearl in their society.

These are exampled through rare paintings and sculptures from that era. It is said that

Cleopatra once swallowed a pearl with a glass of wine just to prove a point to Marc

Antony that she could consume the wealth of an entire nation in one meal; the value

worth thirty million Sesterces (“the price of a kingdom in one mouthful”).   The Chinese

are among the first to have recorded the use of Pearl Jewellery in their text going back

as far a 4,000 years.   In the symbolic language of ancient China, pearls represented

preciousness and purity.   The imperial house accepted pearls in payment for taxes,

and a pearl was placed in the mouths of the deceased who came from wealthy families.

In fact they were known to actually specified Freshwater Pearls from the river of Hwai in

a southern province.   There is also documented evidence of Saltwater Pearls from the

Sea on the coast of China and the coast of Japan.   The oldest individual pearl to be

recorded is the famous “Jomon”, which is a Japanese pearl dating back to more than

5,500 years old.

 

What is the difference between a freshwater pearl or

cultured pearl?

           

 

Although the traditional source of pearls has been oysters which live in saltwater,

mollusks which live in freshwater lakes and rivers can also produce pearls.    China

has harvested freshwater pearls in the form of Mabe since the 13th century, and is

now the world's undisputed leader in freshwater pearl production.    The first record

mentioning pearls in China was from 2206 BC.   The United States was also a major

source of natural freshwater pearls from the discovery of the New World through the

19th century until over-harvesting and increasing pollution significantly reduced the

number of available pearl-forming mussels.    Generally speaking, freshwater pearls

are not as round as saltwater pearls, and they do not have the same sharp lustre and

shine as akoya pearls.    However, they appear in a wide variety of shapes and

natural colours, and they tend to be less expensive than saltwater pearls.    As

freshwater pearls are solid nacre, they are also quite durable, resisting chipping,

wear, and degeneration.   With a total production of 1500 tons in 2006, China holds

a monopoly over the pearl industry today.    Although the birth of the Chinese

freshwater pearl industry is traced back to the area around Shanghai, freshwater

pearls are now produced in all surrounding provinces including Zhejiang, Anhui,

Jiangsu, Hubei, Hunan, and Jianxi.    Local trade is conducted mainly in the cities

of Zhuji (Shanxiahu), Suzhou, Wuxi, Wenling, and Weitang.   The largest market for

these freshwater pearls is the world's pearl trading hub, Hong Kong.   Freshwater

pearls differ from other cultured pearls in that the great majority are not

bead-nucleated.    Freshwater mollusks are nucleated by creating a small incision

in the fleshy mantle tissue of a 6 to 12 month old mussel, and inserting a 3mm square

piece of mantle tissue from a donor mussel.   Upon insertion the donor (graft) tissue is

twisted slightly, rounding out the edges.   What happens after this point still speculation.  

Some believe that this tissue acts as a catalyst in producing a pearl sac thus making

the 'nucleation' actual 'activation', others believe the tissue moulds with the host to

create a pearl sac, while still others maintain the tissue is the actual nucleus. 

Although it is said that a freshwater mollusk can withstand up to 25 insertions per

valve, it is not common industry practice to perform only 12-16 insertions in either

valve, for a total production of 24-32 pearls.    The mollusks are then returned to

their freshwater environment where they are tended for 2-6 years.    The resulting

pearls are of solid nacre, but without a bead nucleus to guide the growth process

the pearls are rarely perfect round.  In recent years the Chinese have been able to

take the art of culturing freshwater pearls to new levels.    Although rare, some

freshwater pearl production exhibits lustre equivalent to high grade akoya, round

shape with less than a percentage point of deviation, colors as exotic as Tahitian,

and size as large as South Sea.   Although grades in these category represent

much less than 1/10th of 1 percent of total production, due to the enormous

production of freshwater pearls there is a marketable quantity.   The first being

the industry shift from the Cockscomb pearl mussel (Cristaria plicata) to the

Triangle shell (Hyriopsis cumingii) in the middle 1990's.    The Cockscomb was

responsible for the low quality rice-crispy pearls of the 1970's and 1980's.   

Another shift in quality can be attributed to the lower number of grafts inserted

into either valve.  This number has dropped by an average of 5 per side in the

last decade.  The turn of the century brought another wave of quality and exotic

pearl colours in the form of mussel hybridization.   The Japanese have a

distinguished history of culturing freshwater pearls as well.   Lake Biwa was

once world renowned for producing high-quality freshwater pearls produced

by the Hyriopsis schlegeli (Biwa pearly mussel) mussel.    However, in the mid

1970's pearl farming all but came to a halt due to pollution in this lake that was

once synonymous with freshwater pearls.   The Japanese tried once again to

farm freshwater pearls in Lake Kasumigaura in the last decade, utilizing a

bead-nucleated hybrid mussel (Hyriopsis Schlegeli anadonata/plicata hybrid

mussels).    The resulting pearls have been quite large and unique.    The

Kasumiga pearl industry had a very short life span, however, with production

ceasing in 2006.    

           

 

Pearl Farming

Freshwater Pearl Farm
 

Freshwater mollusks are generally nucleated using a piece of mantle tissue only,

without a bead.   The pearl develops around the mantle tissue, which can over time

deteriorate, leaving a pearl that is composed almost entirely of nacre.  After nucleating,

the oysters are provided a few weeks to recover from the surgery.   During this time,

some of the oysters may reject and expel the implanted nuclei; others may become

sick or even die.   Most, however, will recover fully.    The oysters are placed in cages

or nets and moved into the oyster bed, where they will be tended as the pearls

develop.  Depending on the type of oyster, this process can require anywhere from a

few additional months to several more years!   All the while that the pearls are

developing inside the oysters, the pearl farmers pay close attention to water conditions,

weather, and other factors which can influence both the health of the oyster and the

development of the pearl.   Various oysters, for example, require various levels of

water temperature to thrive and produce the best pearls.   The farmers will often

raise or lower the oyster cages in the water to help control the temperature --

lowering the cages to cooler depths when the weather is warm, or raising them

nearer the surface warmth when the weather is cool.   The cages are often

lowered in storms as well, to keep the oysters as safe as possible from surface

turbulence.   Water pollution is also a continuing concern, and pearl farmers take

numerous steps to insure the cleanliness of the water in which their oysters live.

After the pearls have been allowed to develop fully, they must be harvested.

The pearls are extracted from the oysters, then washed, dried, and sorted into

general categories.   Sometimes the pearls are polished by tumbling them in salt

and water.   The pearls are then sold to jewellers, manufacturers, and pearl dealers.

 

  

Original Designs - Handmade Freshwater Pearl Necklaces With A Difference. 

 

 

 

 

 

 

 

 

 


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