GIA Diamond Grading final -2022-Betty, Questions and Correct Answers 2024, With Complete Verified Solution.

GIA Diamond Grading final -2022-Betty, Questions and Correct Answers 2024, With Complete Verified Solution. Diamond grades are only part of the determination of diamond _____ _____ diamond market value. Large, high-quality diamonds are graded much more thoroughly than small, low-quality ones. The huge financial costs involved in locating, developing, and operating diamond mines are factors affecting diamond value. Wholesale price lists are usually organized according to specific combinations of the Four Cs. Reputable gem laboratories don't grade mounted diamonds because mountings hide details of clarity and cut. Once diamond deposits are located, mining companies must spend additional time and money to evaluate and develop them. A wholesaler is someone who sells to retailers. The diamond industry has changed dramatically in recent years because the world's supply of diamond rough has increased. The most consistent and dependable sources of diamond grades are reputable gemological laboratories. Substantial price discounts are available to retailers and jewelry manufacturers who can buy in large quantities. A diamond grading system provides a consistent way to communicate diamond quality A diamond's clarity and color grades indicate its quality An estimation of the value of an article is a(n) appraisal Diamond prices on wholesale price lists depend on the market conditions that exist when the lists are published. Dealers often sort melee by size using sieves Diamond's supreme hardness and durability are a result of the conditions under which it formed. Large, high-quality diamonds are graded much more thoroughly than small, low-quality ones. The Argyle mine in Australia contributed to the rise of the cutting industry in India. Abundant South African diamond sources appeared in XXXX, just when diamond demand broadened. late 1800s The diamond rush began with the discovery of the Star of South Africa in in 1869. Early South African diamond fields contained hundreds of small, individually owned and operated claims. XXXX wanted to stabilize diamond prices, so he started by trying to control production Cecil Rhodes Cecil Rhodes established De Beers Consolidated Mines Ltd. in ____ to direct mining operations 1888 Rough is sorted into categories based on _____, _____, _____, and _____. size, shape, clarity, and color. At a sight, the CSO presented a customized selection of diamonds to each sightholder for acceptance. XXXX brought dynamic changes to the global diamond market. The early twenty-first century Before the discovery of South Africa's diamond deposits, the world's two major producers were India and Brazil In the diamond trade, the word "specials" refers to diamond rough over 10.80 cts. Cecil Rhodes' main competitor in his early attempts to control diamond production was Barney Barnato. The soft, diamond-bearing material near the surface of a diamond field was named yellowground. De Beers requires its sightholders to have an excellent reputation in the industry and the financial strength to make large purchase commitments The group that united in 1890 to buy and sell all of the output of the major diamond producers, including De Beers, was the London Diamond Syndicate The Central Selling Organisation was a rough diamond distribution agency Sightholders purchase diamond rough by attending invitation-only trading events The South African diamond rush was sparked by the discovery of the Star of South Africa Diamond sources started appearing in South Africa during the 1860s. Oppenheimer's answer to low diamond demand in the 1930s was to shut down operations at De Beers mines. De Beers Consolidated Mines Ltd. was named after the owners of a farm where one of the first diamond rushes took place. The Diamond Information Center and the Diamond Promotion Service were created to assist in diamond marketing efforts. The path diamonds followed from mine to consumer was called the diamond pipeline · The XXX controlled diamond prices by buying and holding supplies until demand increased. CSO A finished piece of diamond jewelry has much greater value than a rough diamond crystal. True XXXXX allowed Argyle's small, lower-quality stones to be processed for the jewelry market. The low-wage Indian cutting industry New diamond supplies combined with major _____ and _____ events led De Beers to institute dramatic changes. New diamond supplies combined with major political and economic events led De Beers to institute dramatic changes. XXX had to demonstrate the ability to sell diamonds and to add value to those diamonds in some way. SOC sightholders had to demonstrate the ability to sell diamonds and to add value to those diamonds in some way. XXX manufacturing industry makes it a major force in the new multi-channel market. India's diamond manufacturing industry XXX showed an ability to sell a huge volume of diamonds without relying on the "personal touch." Electronic retailing showed an ability to sell a huge volume of diamonds without relying on the "personal touch." The future of the diamond market in manufacturing and consumption may be in Asia, especially China and India. De Beers became a privately owned company in May 2001 Because the Australians believed the CSO's marketing favored large stones over smaller ones, they aggressively promoted jewelry set with their own tiny gems. A bourse is a(n) diamond buying and selling club Vast quantities of small, inexpensive diamonds suitable for low-cost, mass-market jewelry are mined in Australia By 2004, more than 90 percent of manufacturing for the diamond market was done in India. The involvement of a business or industry in all aspects of its product's market is called vertical integration The diamond industry program designed to ensure that diamonds do not fund civil conflict or terrorism is called the Kimberley Process Businesses that sell to consumers via television cable, phone line, or satellite are called electronic retailers. Which diamond mine's huge production influenced the world market in the late 1980s? Argyle A commitment to reserve a portion of the resources derived from any country for the economic development of that country is called beneficiation. A city, region, or country with a large number of gemstone manufacturers is called a cutting center. The program adopted by De Beers in 2007 to answer critics and resolve shortcomings of its SOC program is called Supplier of Choice 2. In South Africa, a new mining charter that designates the people of the country as the owners of its mineral resources is a result of Black Economic Empowerment One of the changes that resulted from De Beers' strategic review in 1999 was that De Beers changed the name of the CSO to the DTC In 2000, De Beers altered its consumer advertising by introducing the "Forevermark" logo. XXX and XXX are both made of carbon. Diamond and graphite(墨石，非常软） are both made of carbon. XXX needed for diamond formation is always present The carbon needed for diamond formation is always present. Diamonds might wait XXXXX before they're carried to the surface. hundreds of millions of years Diamonds that exist today were delivered to the surface between XXX and XXX years ago 2.5 billion and 20 million years ago. XXX and XXX · transport diamonds to the surface, but diamonds don't form in them. Kimberlites（金刚石） and lamproites（钾镁煌斑岩） Very few kimberlites actually contain_____ diamonds The large, stable parts of the earth's continental crust are called cratons During emplacement, if diamonds are exposed to high temperature along with decreased pressure for a long period, they will convert to graphite. Before arriving at the earth's surface, diamonds might remain in the mantle for as long as a few hundred million years The first authenticated diamond discovered in South Africa is named the Eureka. Diamonds were delivered to the earth's surface as recently as 20 million years ago The three main components of the earth are the crust, mantle, and core. Most of the world's kimberlite pipes do not contain diamonds in profitable quantities How far beneath the earth's surface do diamonds form? 90 to 140 miles (140 to 220 kilometers) Diamond and graphite are both made of Carbon（碳物质） The proper environment for diamond formation includes the right temperature, pressure and the availability of carbon. Scientists have found that diamonds form in two types of rocks, called peridotite（橄榄岩） and eclogite（榴辉岩） Subduction（俯冲） occurs when two of the earth's crustal plates（地壳版块） collide（碰撞） Diamond is hard and graphite is soft because of the difference in the way their atoms(原子） fit together. The correct conditions for diamond formation exist under cratons. The deep vertical formations through which diamonds traveled to the surface are called pipes It takes XXXXX to develop a diamond mine. many years and millions of dollars For a mine to be successful, the projected value of its diamonds must be more than the cost of mining them. Diamond exploration specialists start by looking for the oldest parts of the earth's crust. Most of the diamonds mined today come from pipes A mining company must consider a potential mine's location, climate, and political conditions along with its content Diamonds classified as cuttable can be 100 times more valuable than industrial diamonds. A profitable mine produces diamonds whose value is higher than the mine's operating costs The first step in exploring for diamonds is to look for the oldest parts of the earth's crust Diamond rough suitable for use in tools, drills, and abrasives is industrial quality. Most of the diamonds mined today come from pipes To focus their search for diamond deposits, geologists look for indicator minerals. Indicator minerals in kimberlite and lamproite include tiny diamods Diamond rough suitable for use in jewelry is called cuttable For more than 2,000 years, the only known diamond sources were alluvial（冲击钻石，即为“珀匹盖”陨石坑的金刚石，是普通钻石硬度的2倍） A mine's potential profitability depends in part on its ore （矿石）grade The concentration of diamonds within a pipe is called ore grade Gravity sorting separates diamonds from lighter materials Diamond deposits found at the ocean's shore are marine deposits. Diamonds are more concentrated in marine deposits Only a small percentage of known diamond deposits are mined because most are not profitable Most modern diamond-mining operations are large in scale and extremely expensive XXX holds perhaps the largest marine diamond deposits in the world. Namibia（那米莉亚，南非的一个国家） India was the world's only major diamond source until the eighteenth century. XXX has the world's most diverse diamond sources. Africa XXX is known for producing blue diamonds as well as very large diamonds. The Cullinan mine XXXX is the most technologically advanced underground mine in the world. The Finsch (Northern Cape) Russia's diamond sources are almost all primary. XXX was the first commercially important primary source of diamonds in lamproite. Australia's Argyle mine The Argyle mine is famous for producing