Gun San

Emilie Choi is a graduate of Johns Hopkins University, Class of 2000, where she majored in Economics. She obtained her MBA in Strategic Management from The Wharton School of the University of Pennsylvania. At Wharton, Choi was recipient of John A. Mayer Fellowship, a merit scholarship based on academic and professional performance. She was a teaching assistant for a core Wharton management course and the VP of Career Development for the Media and Entertainment Club. Choi studied abroad taking a course in general course in economics from the The London School of Economics and Political Science (LSE).

The third largest segment of the global diamond market such countries as South Africa, Botswana, Russia, Canada and

Brazil. These countries are engaged in diamond mining and sell 70-90% of the mined stones under the De Beers agreement, the global leader in the sale of diamonds. Thus, the diamond market is strictly divided, which helps keep it stable.

to buy weapons. As a result, diamonds began to receive certificates, where the source of origin is indicated. To date, black The diamond trading market is estimated at 4 to 20%. Majority specialists tends to figure 20%. Majority specialists tends to figure 20%. The diamond trade is underway with countries where the arms and drug trade is highly developed.

The total production of diamonds in the world is 100-120 million carats. The total cost is ~ 6-8 billion dollars. Diamond mining is carried out in 26 countries of the world. The largest diamond-producing countries are: Australia, South Africa, Botswana, Canada, Brazil and Russia. Despite the large number of countries involved in the extraction precious stones, the diamond market is strictly divided into three segments that do not intersect. This allows control global production and consumption, and maintain high prices for rough and polished diamonds. The first segment includes the diamond mining market Australia. The country ranks second in diamond production. On the largest kimberlite pipe Argyle diamond mining operated by a company of the same name. Despite the large volumes diamond mining in terms of quality, they are one of the worst, small and impure. In view of this, they are little valued in the world market. Almost all diamonds mined in the country are exported to India, because there is a very high demand, but because of the low standard of living Indian enterprises can afford to buy only inexpensive Australian diamonds. So Australian diamonds got the name "Indian product". The second segment of the world market is illegal "black market" for the production and sale of diamonds. He is most widely developed in poor African countries such as Sierra Leone, Zaire, Angola, etc. Due to ongoing civil strife and wars the sale of diamonds has become a major source of funds for the purchase weapons. The world community opposes the acquisition diamonds from these countries, and against the funds from diamonds going

to buy weapons. As a result, diamonds began to receive certificates, where the source of origin is indicated. To date, black The diamond trading market is estimated at 4 to 20%. Majority specialists tends to figure 20%.

The total production of diamonds in the world is 100-120 million carats. The total cost is ~ 6-8 billion dollars. Diamond mining is carried out in 26 countries of the world. The largest diamond-producing countries are: Australia, South Africa, Botswana, Canada, Brazil and Russia. Despite the large number of countries involved in the extraction precious stones, the diamond market is strictly divided into three segments that do not intersect. This allows control global production and consumption, and maintain high prices for rough and polished diamonds. The first segment includes the diamond mining market Australia. The country ranks second in diamond production. On the largest kimberlite pipe Argyle diamond mining operated by a company of the same name. Despite the large volumes diamond mining in terms of quality, they are one of the worst, small and impure. In view of this, they are little valued in the world market. Almost all diamonds mined in the country are exported to India, because there is a very high demand, but because of the low standard of living Indian enterprises can afford to buy only inexpensive Australian diamonds. So Australian diamonds got the name "Indian product".

The total production of diamonds in the world is 100-120 million carats. The total cost is ~ 6-8 billion dollars. Diamond mining is carried out in 26 countries of the world. The largest diamond-producing countries are: Australia, South Africa, Botswana, Canada, Brazil and Russia. Despite the large number of countries involved in the extraction precious stones, the diamond market is strictly divided into three segments that do not intersect. This allows control global production and consumption, and maintain high prices for rough and polished diamonds.

currently only from this deposit annually extract 25 million carats. The demand for diamonds is so great that the leading mining companies and state-owned enterprises of the world continue to search new fields to meet the ever-growing demand.

"pure water". No more than 10-15% of mined stones. The bulk of diamonds is used in technology. Of them produce abrasives, drills for drilling deep wells in hard rock, cutters for metal processing, etc. Diamond characterized by high thermal conductivity: it is two to five times higher than that of metals. The specific heat capacity of diamond is three times higher than hard alloys. High thermal conductivity allows quickly remove heat from the surface of the processed products. Diamond is a dielectric, however, individual varieties of diamonds (for example, blue or blue) can have semiconductor properties. In Russia, the first diamond was found in 1829. Somewhat later, river placers were found with a small number of small diamonds. However, despite the continuous 150-year searches, no significant placers were found in the country. Since 1867, diamond mining began in South Africa, from the rich river placers, and in 1890 a new type was discovered deposits - kimberlite pipes - also in South Africa, near the village of Kimberley. Diamond pipes have opened up new opportunities for mining production. By the end of the first decade of the XX century. in Africa were hundreds of deposits have been discovered. Later, in 1940, in Tanzania there was discovered the largest and richest pipe Mwadui. Its size is 1625x1070 m. Despite the great popularity of kimberlite pipes, more 90% of the mass of all extracted diamonds was obtained from placers, because the content of diamonds in kimberlite is extremely low - about 1 carats per 3 tons of kimberlite. Russia became one of the diamond-mining countries in the 50-60s. 20th century With discovery of the Yakut deposits. Over the past 40 years in Yakutia Dozens of other deposits have been discovered. Russia has become one of the leading diamond mining countries. In the 70s. 20th century to one of the leading places for diamond mining Australia advanced, where an unusual discovery was made. Here, diamond-bearing pipes were found, folded not kimberlites, and related rocks - lamporites. The richest Argyle pipe was discovered at the end of 1979.

currently only from this deposit annually extract 25 million carats. The demand for diamonds is so great that the leading mining companies and state-owned enterprises of the world continue to search new fields to meet the ever-growing demand.

"pure water". No more than 10-15% of mined stones. The bulk of diamonds is used in technology. Of them produce abrasives, drills for drilling deep wells in hard rock, cutters for metal processing, etc. Diamond characterized by high thermal conductivity: it is two to five times higher than that of metals. The specific heat capacity of diamond is three times higher than hard alloys. High thermal conductivity allows quickly remove heat from the surface of the processed products. Diamond is a dielectric, however, individual varieties of diamonds (for example, blue or blue) can have semiconductor properties. In Russia, the first diamond was found in 1829. Somewhat later, river placers were found with a small number of small diamonds. However, despite the continuous 150-year searches, no significant placers were found in the country. Since 1867, diamond mining began in South Africa, from the rich river placers, and in 1890 a new type was discovered deposits - kimberlite pipes - also in South Africa, near the village of Kimberley. Diamond pipes have opened up new opportunities for mining production. By the end of the first decade of the XX century. in Africa were hundreds of deposits have been discovered. Later, in 1940, in Tanzania there was discovered the largest and richest pipe Mwadui. Its size is 1625x1070 m. Despite the great popularity of kimberlite pipes, more 90% of the mass of all extracted diamonds was obtained from placers, because the content of diamonds in kimberlite is extremely low - about 1 carats per 3 tons of kimberlite. Russia became one of the diamond-mining countries in the 50-60s. 20th century With discovery of the Yakut deposits. Over the past 40 years in Yakutia

"pure water". No more than 10-15% of mined stones. The bulk of diamonds is used in technology. Of them produce abrasives, drills for drilling deep wells in hard rock, cutters for metal processing, etc. Diamond characterized by high thermal conductivity: it is two to five times higher than that of metals. The specific heat capacity of diamond is three times higher than hard alloys. High thermal conductivity allows quickly remove heat from the surface of the processed products. Diamond is a dielectric, however, individual varieties of diamonds (for example, blue or blue) can have semiconductor properties. In Russia, the first diamond was found in 1829. Somewhat later, river placers were found with a small number of small diamonds. However, despite the continuous 150-year searches, no significant placers were found in the country. Since 1867, diamond mining began in South Africa, from the rich river placers, and in 1890 a new type was discovered deposits - kimberlite pipes - also in South Africa, near the village of Kimberley.

"pure water". No more than 10-15% of mined stones.

"pure water". No more than 10-15% of mined stones. The bulk of diamonds is used in technology. Of them produce abrasives, drills for drilling deep wells in hard rock, cutters for metal processing, etc. Diamond characterized by high thermal conductivity: it is two to five times higher than that of metals. The specific heat capacity of diamond is three times higher than hard alloys. High thermal conductivity allows quickly remove heat from the surface of the processed products. Diamond is a dielectric, however, individual varieties of diamonds (for example, blue or blue) can have semiconductor properties.

The diamond is one of the most valuable and specific

minerals. Until the 15th century, mankind knew only one side of this

mineral: the fact that it is unusually hard, and it was valued lower

emerald and ruby. It was only in the 17th century that diamond cutters invented

special cut of a diamond: brilliant, which is maximally

highlights his dignity.

In jewelry, only colorless stones without a shade are valued, for

with the exception of blue, and without flaws - the so-called diamonds

The diamond is one of the most valuable and specific minerals. Until the 15th century, mankind knew only one side of this mineral: the fact that it is unusually hard, and it was valued lower emerald and ruby. It was only in the 17th century that diamond cutters invented special cut of a diamond: brilliant, which is maximally highlights his dignity. In jewelry, only colorless stones without a shade are valued, for with the exception of blue, and without flaws - the so-called diamonds

"pure water". No more than 10-15% of mined stones.

stones.