Carat is the unit of measurement for the physical load of diamonds. One carat equates to 0.200 grams or 1/5 gram and is subdivided into 100 points. Because that comparison, in units much more familiar in the united States, one carat equates to 0.007 ounce avoirdupois. I m sorry would require over 2,265 carats to same 1 pound!


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Carat load is the most objective that the diamond’s 4Cs. All that is compelled is a precisely well balanced scale capable of measure up extremely small weights. In the AGS Laboratories, carat load is measured using a highly accurate, and calibrated digital scale.

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Here room some facts about a diamond’s weight and price the are necessary to understand prior to purchasing.

Comparing the value of diamonds by carat weight is favor comparing the worth of paints by size. A wall-sized canvas by one unskilled artist might be bigger 보다 a miniature by Rembrandt, yet it will certainly not be worth more. Big diamonds are rarer than smaller sized ones, and also as the carat load increases, the value of the diamond rises as well. However, the increase in value is not proportionate come the size increase.

For example, a 1-carat diamond will certainly cost an ext than twice that the a ½-carat diamond (assuming Color, Clarity and also Cut grade are the same). Weight does not always enhance the value of a diamond, either. 2 diamonds of same weight may be uneven in value, relying on other determining components such as Cut, Color and also Clarity. In fact, if a diamond is improperly cut, the added weight might serve just to reduce its brilliance.


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The American Gem culture (AGS) is a nonprofit profession association of fine jewelry professionals devoted to setting, maintaining and also promoting the highest possible standards of ethical conduct and professional habits through education, accreditation, recertification that its membership, gemological standards, and gemological research.

The culture is committed to providing educational assets to inform and protect the consumer and also to contributing come the betterment the the profession by developing industry requirements to defend the jewelry-buying public and also the good jewelry industry as a whole.

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AGS Laboratories, founded to support the AGS mission, is a nonprofit diamond grading laboratory with a mission of consumer protection. Adhering to the AGS Diamond Grading Standards, AGS Laboratories is devoted to supplying diamond grading reports that administer consistency and accuracy based on science.