What parts of the world to diamonds mainly come from?
107430
The majority of world diamonds comes from Africa
615201
95% come from australia\n\ni think they are found in other kinds of rock\n\nhttp://en.wikipedia.org/wiki/Opal
879661
The gold and diamond bearing Earth of Africa influences trade also its Northern fruitful savanahs are a reason its great population of animals and beasts also attract zoos. A bounty for smugglers and hunters is Africa. It is also rich in oil, herbal medicines snd vegetation. Logging also occurs there
491525
Parekh mean People who collects Diamonds
191141
Most... United States of America...\n\nLeast... China...
241200
Most gem quality Pink Topaz comes from Skardu in Pakistan. In the U.S it comes from the Thomas Range, Juab County, in Utah.
1186958
I know the answer. One word. DIAMONDS. lol
582618
South America, most of Central America, and the Caribbean
1067798
They use a special cutter that's made using smaller diamonds :-)
909392
Crystal "defects" can be due to imputities. This is common with diamonds.
939259
Best Answer - Chosen by Asker\n\nBlack diamonds were introduced by debeers around 1989/90 at the nec spring fair (jewellers trade show). They were a way of using industrial diamonds (grey,brown,white but severly flawed,through to black, usually reserved for drills, tools, abrasives). They sorted the pure black ones, and cut them into jemstones, like regular diamonds. They never really took off, and, because of the black being patchy within the rough stone, there were only small gemstones cut, containing only the uniform dark black areas, of the rough stone. Now with pink diamonds becomming popular (these are usually colour enhanced by radiation) small uniform colour diamonds of different colours are popular. By small we mean in use in pave' setting ("encrusted effect") channel setting of eternity rings, Bling style words/names as pendants, encrsted with small stones. So now, the new "black" diamond is trendy! You will never really see one as a large single stone in a solitare ring. Diamonds, of all sizes naturally occur in differnent "hughes" (rather than bold colours) and a popular yellow hugh is called a canary diamond. Good flawless colour commands higher prices than white, of the same quality. An off shade, (grey, or ununifrorm colour) lessens the price. The "hope" diamond which was featured in the titanic film (it never really was on board in real life, a bit of romance, based on an actual diamond) is 45 carats and the pure blue of a light sapphire, dark blue topaz, only more so! A proccess has now been achieved, to grow in a lab, proper diamonds, that show as genuine on all heat dispese testing equipment as used by retail jewellers. They are chemically, Diamonds. These can be created in any uniform colour by adding metal oxides during growth of the crystal. these must be labelled as created diamond. NB. they are not c.z, or any of the shopping channel simulants. They are not cheap either, compared to c.z, but comparitevly so compared to natural, mined diamond.
1021578
Europe mostly.  Then a bit in the US, Canada, Australia, New Zealand and much less anywhere else in the world.
687694
Yes. Generally, certain locations are associated with the better quality gemstones. This would be the case of Columbian emeralds, Burmese rubies and Cashmere sapphires. \nColor in gemstones, for example can respond to different reasons. The  main factors that imbue color in a gemstone are two: an element that is part of the basic formula of the mineral species (and this would make a gemstone always have the same color, caused by the same element); or, on the contrary, an element that becomes part of the mineral species during the forming of the specimen, and that is not necessarily within the formula of the mineral. \nColoring in gemstones such as emeralds, rubies, sapphires, fancy diamonds etc. responds to this second cause. If the color of emeralds depends on what element came to -casually- become a part of them, you can see how the geographic origin of a stone has a lot to do with color. \nColumbian emeralds, for example, are colored by chrome (so are rubies, generally), which provides the nicer, more intense grass-green. Emeralds in Brazil and Africa are colored by other elements, that don't impart such a vivid or valuable color. \nThere has been, in fact, a lot of talk about whether one can call an emerald any grass-green beryl, or whether the term "emerald" can only be applied to those green beryls that have been colored by chrome. Since only Columbian emeralds owe their color to chrome, ruling out every other emerald would enormously dwarf the value of emeralds from other origins, so nowadays, all green-grass beryl is called emerald. \nThe same goes for clarity: different geographic regions are more likely to present different kinds of inclussions. As much as in diamonds, inclussions are considered a negative on value, the case with gemstones is other. As inclussions can identify the origin of a gemstone, inclussions that point to the better-quality origins are valued as possitive factors, that may increase the price. This is the case of tri-phasic inclussions in Columbian emeralds (inclussions formed by gas, liquid and a solid cristal); rutile "silks" in Burmese rubies (short ruitle needles that make the inside of the stone look silky) or a slightly murky, opalescent appearance on Cashmere sapphires. \nCertain regions have also produced, generally speaking, larger crystals, although the rough size of a gemstone actually depends more under what temperatures and pressure that species generally forms. The larger the temperature and pressure, the smaller the crystals (generally). Temperature and pressure depend on the depth of formation: the same mine may have, for example, garnets and diamonds in its deeper parts, and beryl towards the top (aquamarine, emeralds...). This is just an example, though... If you would like more information on forming, you probably should refer to a specific book on the matter. \nOrigin, however, is not any kind of guarantee: as much as Columbia may have produced the finest specimens of emerald, most of the emeralds to be mined out of the country are treated and oiled, or even fracture filled. The same goes for rubies and sapphires: most of them are heated to improve it's appearance (which is an accepted kind of treatment).\nWhen buying a gemstone (especially one of the 3 main ones, emerald, ruby and sapphire) it id highly recommendable to get well informed on the matter. No particular feature of the stone is a guarantee of the stone's value: a good color achieved by treatment, or impaired by many cracks and fractures will not make for a valuable stone. Also, it's important to be informed about what are the current gemstone treatments (which are legal, which not), and decievers; what are the more likely scams and so on. \nBuying a gemstone at the mine of origin is no guarantee, either: out of every 10 emeralds to be taken out of Columbia, 2 or 3 will have been switched for synthetic emeralds AT THE MINE. \nEven the most reputable jewelers have to carefully an
123252
The African diamond economy is controlled by DeBeers. The largest diamond mine in the world is located in Africa. African gold is of average or below average grade, usually a deep yellow color. Most of the african gold reserves have been exhausted through centuries of mining. Now, miners are turning to things like uranium, which is plentiful in Africa.
909806
Interesting question!!  I couldn't find a definitive answer.  At one time it was probably Switzerland - you know, Swiss watches, but they probably now produce only the most expensive watches!\n\nI would guess that probably China or some other country with a large labor force produces the most in number.   \n\nYou may find these sights interesting.  Best of luck in finding an answer!
99998
Yes, diamonds are more abundant than we are lead to believe.  De Beers controls most of the diamond trade.\n\nI first saw this on the PBS TV show Nova a few years back:\nhttp://search.yahoo.com/search?ei=utf-8&fr=slv1-&p=nova%20de%20beers\n\nThe Yahoo Searches below lead to articles on the scarcity (or lack there of) and abundance of diamonds.
601183
Actually, diamonds are not that rare.  How come you can always find them in stores?  The reason they are so expensive is the price is set by DeBeers, a private firm that has a near monopoly in the diamond market.  DeBeers hordes thousands of diamonds and only releases a certain amount each year to keep the market adjusted to their liking. Read up on them.\n\n(Looks like tripforyou beat me to the punch)