An international diamond exchange functions as a central distribution area for these rare gems. It is in these locations, where the gems are sorted and distributed, after they have been mined. There are various characteristics that the gems must possess when being sorted.
Exchanges are the place where the stones are received, once they have been mined. The exchanges are responsible for sorting the stones based on specific characteristics that they possess. After the stones have been sorted, based on these characteristics, the exchanges will sell the stones to jewelers. The jewelers will then order to have them cut and polished to create jewelry.
There are a plethora of sorting facilities set up all around the world. In most cases, it is impossible to obtain the exact location of these facilities, due to security. If everyone knew where these facilities were, these facilities would probably get broken into a lot, stopping them from being able to complete their assigned tasks.
Miners will bring the gems that they have located, through mining, into the processing center. The processing center will purchase the gems from the miners, after they have determined if they are true gems or not. Once purchased, then the processing center will have to do their part, before they can sell the gems off to jewelers.
These individuals will go out to mines, searching for the precious gems. Once they locate them, they then take them to a sorting facility. While at the sorting facility, the miners are paid for the stones, based on their weight. Sorters will then determine the value of the stone using three characteristics of them.
Exchanges use sensitive scales when weighing the stones that they receive. The stones must be weighed at the time of purchase from the miner, as well as after the stones have been sorted. Weighing is an important task, because it takes 142 carats of the precious stone in order to produce one ounce of material that can be used to create a piece of jewelry.
Aside from sorting, an international diamond exchange also has to distribute the stones, once they have been sorted accordingly. Sorters do not give the stones to jewelers. The jewelers are required to purchase the stones from the sorting facilities, at a bulk rate. Typically, once purchased the jeweler will send the gems off to an outside facility that will cut the stone to a specific fashion, as well as polish it.