A diamond appraisal is used to determine
A diamond appraisal is used to determine the dollar value of a specific gem. Loose diamonds that are bought and sold by jewelry wholesalers for the wholesale diamond jewelry market are subject to the process of diamond appraisal prior to sale. It uses four main criteria – known as the “Four C’s” – in order to evaluate loose diamonds and determine fair market prices of such precious stones.
The first three criteria are:
– carat: the size of the stone in terms of weight and mass. A modern carat is equal to 1/142nd of an ounce (i.e., a 142-carat diamond weighs one ounce).
– clarity: the diamond’s degree of “flawlessness.” Virtually all loose diamonds have tiny imperfections, but these are not usually visible to the unaided eye. Virtually flawless diamonds are graded FL. Diamonds with visible imperfections (called “inclusions”) are rated “I,” and those with “slight” inclusions are rated “S.”
– color : For a gem that is technically “colorless,” diamonds come in an astonishing number of colors, ranging from pure white to dark brown. Each color is rated from one to seven, with seven denoting the deepest, most vivid colors. Diamond color is caused by chemical reactions with other elements; some diamonds today are irradiated as well in order to increase the intensity of color.
These are objective, quantifiable and easily measured characteristics that are usually determined by a gemologist.
The fourth “C,” cut, is more difficult to evaluate. Thanks to technological advances that now allow professional diamond cutters to use lasers and computer aided design, there are well over 250 different diamond cuts available. Most gem-grade diamonds have 57 facets; the way these are done will have a great affect on the results of the diamond appraisal.
Silver is a metallic chemical element, known from the earliest times. According to legends, Gold was considered to be the skin of the ancient Egyptian gods, but their bones were thought to be of silver. Ancient Egyptians were able to obtain gold and even electrum, but it is believed that silver was not known to them for a long time. Electrum is a gold-silver alloy which occurred naturally. It had silver contents somewhat higher than twenty percent and its color was pale amber. It was worked and used similarly to gold.
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