Depending on the type of oyster that produced them and what part of the world they are from, pearls come in a wide range of shapes, lusters, and mysterious colors. The following introdution is mainly about akoya pearl and freshwater pearl.

Akoya Pearl

Akoya Pearls are produced by the Japanese Akoya Oyster. Best known for their deep luster, rich color, and perfect round shapes, Akoyas are the most popular and classic.

The Akoya cultured pearl made its debut in 1905 when Kokichi Mikimoto first introduced the technique to produce round pearls by the process of bead nucleation. Already by 1920, he had accomplished his lifelong dream to adorn the necks of ladies all around the world with his revolutionary Akoya cultured pearls.

Akoya Pearls over 9mm are rare and highly valued on the market. Given that the Akoya oyster is the smallest commercial pearl jewelry producing oyster, the pearls tend to be small and are usually limited to producing no more than 2 pearls per harvest. Compare that to the freshwater pearl producing mussel that is capable of producing over 40 pearls at a time, and it is no surprise that Akoya Pearls command a higher value than freshwater pearls of similar quality.

Akoya Pearls range in body color and overtone. Body color, referring to the basic color of the pearl, includes white, cream, green, silver, pink, and gold. Akoya overtones, or tints as seen in the central areas of the pearl under light, include rose (pink), green, silver, and blue. The most rare and valuable Akoya Pearl color is white with rose overtones; a green overtone is considered less desirable in white colored pearls and its presence reduces value.

Freshwater Pearl

Freshwater pearls are the most common type of pearl and produced primarily in China by the freshwater pearl mussel Hyriopsis Cumingi. These pearls are best known for their unusual shapes, wide variety of sizes, and range in colors.

Differing from that of saltwater pearls, the process used to produce freshwater pearls does not require a shell nucleus but rather a tissue grafting technique that facilitates mass production. The mussel is also larger than that used to produce Akoya Pearls, resulting in the simultaneous production of up to 50 pearls at a time. Because only a mantle tissue is used without a bead nucleus, top quality freshwater pearls are essentially all nacre and offer a very good value.

Freshwater pearls are available in a rainbow of natural colors and shapes, a much wider variety than saltwater pearls, giving them a special allure. Colors include white, orange, lavender, purple, violet, blue, rose, and silver. The variety of shapes includes round, drop, coin, button, rice, stick, and potato. Freshwater pearls vary in size from 2mm to 15mm.


 

Aacording to the news from Yonhap News Agency that American representive team of punishing North Korea will visit china in Jul.2. It is reported that the team is composed by White House, national security council, treasury and defense department. The American Wall Street Daily declared that Obama government have been ready to throw financial threat to force North Korea to give up their nuclear plan, the American treasury department is trying to connect the internation banks to restrict the fund to flow into North Korea, Wall Street Daily cites the words of a US office that China will become the key to this action.

 

It shows that American has changed its original speech attack strategy but focused on the implement of UNSC punishment resolution, by cutting off its financial resource and forcing North Korea to turn back. While China is the key of this punishment action, and also the first choice of public relations officials. The White House seems to have a great confidence about it, this team can be said luxious enough which even has related some important department in American national security system, then what would be the result of this action? Can America get what they want?

 

Personaly, I think America has apparently lost its direction, if the story keeps developing like that, their plan will exist the risk of empty. In this period time, the North Korea government has answered the punishment from international society with a strong atittude, and got great support from their citizens which has furthered united the heart from all aspects, it also have the possibility for them to react in a more drastic measure. The punishment is as common as potluck for North Korea, the history teaches us that punishment never has any effective function for them, if it did, then North Korea’s problem would be solved at early time.

 

North Korea is always complying with the policy of closed door, its foreign economic dependence is low, the lives of their people are mostly self supplied. Central treasury has put large amount of money in military budget, in except, they have took control over a lot of free funds from smuggling and black market trade, all of these are directly serviced for political activity. Maybe it would be a good chance for china to be frank to America, it seems that Beijing government is trapped in passive situation about North Korea problem all the time. The first station of American team is visiting China, it can not exclude the intention of forcing china to support their action. The key to solve North Korea problem depends on mutual understanding of the three parties: China, America and North Korea. So why not just think about what North Korea really wants, and what we can give to them, this would be more meaningful to the current situation.