Why the big diamond, the better the greater the diamond why

Diamond is a diamond of the rich ore is every three tonnes of ore contains about 10 grams of diamond. Most diamond ore mining 250 tons of ore to produce each one carat diamond, the equivalent of each selected 10 tons of soil might have 1 carat diamond. The diamond is not used for diamond, all have used for industrial purposes. Romantic says according to the total amount of diamonds, now the world's single diamond weighs more than 10 carat probably around 2000, more than 400 carats about 57, the world's more than 500 carats diamond just 25. In addition, gem diamond will also reduce weight when processing. So will of course with the larger the weight of the diamond. For other precious stones, the minimum can be ground into a small ring surface is worthwhile, but gem diamond is not, because it is especially valuable, as long as you can into diameter l ~ 2 MRN small diamond is valuable, because it can be embedded in other big stones on the side of the as a decoration or jewelry. Usually the weight less than 0. 24 carat diamond called small drill; 0. 25 ~ 0. In 69 - carat for drill; Weight more than 1 carat diamond, is the big drill. For ground into standard circular diamond drill type, experienced people estimate to the naked eye, according to the size of the diamond, can know its weight. So buy diamond diamond, of course, the bigger the better, so we should choose in diamond of the diamond.