A diamond is valued by its cut, clarity, carat weight and colour.
Larger stones with particular colours, cuts or extreme clarity are valued highest.
Take your diamonds to a local jeweler who can help you value them. Only given the carat weight of a collection of diamonds, there is no way to estimate a value.
Diamonds are cut in the Netherlands, in India, in Canada and Australia. India may cut the most diamonds, since most small stones are cut there.
This practice, which no longer exists, was evidently decided as a way to enhance the refractive value of diamonds.
CTW referencing diamonds stands for carat total weight. Take your diamonds to a local jeweler who can help you understand their collective value.
The most popular cut of Tiffany diamonds is known as the Lazare Kaplan cut. The company is one of the largest diamond cutters in the world and well known.
The only negatives about diamonds have to do with their most positives: value.
The price or value of diamonds is not controlled by any government on earth. The price of diamonds is controlled by markets.
You can call your local Value Village and ask if they have any diamonds for sale.
Diamonds are entertaining for the eye, and have an investment value.
Diamonds are not generally wasted, given their monetary value and useful value as the hardest mineral known.
The best way to figure out the value of your diamonds is to visit a jewelry store and have them appraised by a professional. If you plan on selling your diamonds any local store that buys gold will probably buy diamonds as well and can give you a good resale value.
White diamonds are valued on there color. The nearer a white diamond is to colorless the rarer it becomes. This raises the diamonds value. Imperfections in white diamonds lead to discoloring and can greatly reduce the value.
mINING
Diamonds are most common organized as industrial diamonds -- about 80% of all diamonds mined, and the remainder as gem-quality diamonds. Gem-quality diamonds are used primarily as economic currency with the addition of sentimental value, depending on who gives and who receives the diamonds. Industrial diamonds are used to enhance the precision of cutting tools, regardless of the size. There are too many additional uses for industiral diamonds to list here.
Whatever you have to sell is worth whatever someone will pay you for it. The uncut diamonds could be industrial diamonds or gemstone-quality diamonds. Eighty percent of all diamonds mined are industrial diamonds, which you can purchase very cheaply. Take your uncut diamonds to a diamond cutter for an in-person conversation about the value of each or of the cache.
By 'historical diamonds' one can assume that you mean diamonds with a documented history. The earliest document history of most 'famous' diamonds goes back several centuries. When one considers the evolution of the craft of cutting and faceting diamonds in parallel with the histories of these diamonds, one could conclude that the original values have always been improved upon, even given the loss of carat weight when 'famous' diamonds have been re-cut. However, since most of these historical diamonds are in the possession of royalty, and some have been re-cut based on royal direction, and since many remain spoils of war, this means that there is no monetary value placed on these diamonds.
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