summitsorting

You can find ideas for manipulative activities on my website under each theme. Simply click on the theme you want, then click on "Math and Manipulatives" and you will have some ideas you can use with your students.
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With the sorting and weighing complete, international diamond exchanges then move on to distribution. The stones that are sent out to dealers are the ones that have been deemed useable by the sorters. Once the dealers take possession of the stones, they will very often send them off to factories to be cut and polished. Diamonds can change hands many times before they are actually delivered to market. It is the profit that the sorter makes which determines the difference between the buying and selling price of diamonds. On average, sorters show a profit margin of somewhere around 10%. The Ramat Gan diamond exchange is responsible for sorting roughly 65% of all the rough diamonds in the world, which explains why the sorters who work there earn more than most.
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There are some dealers who are allowed to conduct transactions with Israeli exchanges. These dealers are known as sightholders. These dealers are granted access to bundles of stones that may not necessarily be in accordance with the request that the sightholder submits. The only option they have it to accept or reject the bundle based on the selling price. Once the bundles have been accepted, sightholders are then expected to market and distribute the stones to consumers in order to drum up more interest in the Israeli diamond exchange.
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