Clarity enhanced diamonds are real, mined diamonds that have had their clarity/quality improved by cleaning and cloaking any visible imperfections in the diamond. Clarity enhanced diamonds are lower in price than 100% natural diamonds and therefore for every given carat weight and quality, the price will be lower. Clarity enhanced diamonds are graded after the enhancement and therefore if the diamond was originally F/SI1 and is now F/VS2, it will be priced lower as if it were still F/SI1, however will look like F/VS2.
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Althoguh clarity or color enhanced diamonds are "safe" to buy, they should be dramatically discounted from the price of natural diamonds.
At the online store 'Enhanced-Diamonds' one can purchase a number of diamond products including rings and stand alone diamonds. They are enhanced for increased clarity.
Some diamonds can be enhanced by heat or other techniques, to make their colour more vibrant, or to hide visible flaws. Any enhanced diamond is quickly obvious to any certified gemologist, and as well, enhanced diamonds are less valuable/ expensive than diamonds that have not been treated.
TW means total weight: the combined weight of all the stones in the group of diamonds. Their value is less than if the weight were in an individual stone. Enhanced means that the stones have been artificially enhanced to bring out a natural colour or to hide flaws. Enhanced diamonds are less valuable than natural diamonds.
The highest quality diamonds are found in the earth.
Only 25% of diamonds mined are gem quality: the remaining 75% are industrial diamonds, which is another term you could use for low quality diamonds.
Brown diamonds are the most common colour of diamonds mined, of gem-quality. Only about 20% of all diamonds mined are of gem quality.
'Chocolate' is just one of the modifiers used to identify the colour of a natural diamond in the larger category of 'brown'. Most raw diamonds found fit into the yellow to brown colour range, as below. Some vendors select a specific hue and intensity of brown diamond and market them as chocolate diamonds. In addition, some diamonds are enhanced to fit into this category. So, in direct answer to your query: yes, and some are enhanced to fit this description. Enhanced diamonds are valued lower than naturally coloured diamonds.
Diamonds are classified as industrial -- about 80% -- and gemstone quality, the remainder. Gemstone quality diamonds are classified according to cut, clarity, colour and carat weight.
Not all diamonds have high quality. There are people who sell terribly included diamonds and attempt to pass them off as 'high-quality', which they are not. As well, most diamonds mined today are used for industrial applications and not for jewelry. Industrial-quality diamonds are not high-quality material. A certified gemologist will help you document exactly how the high the quality is in a diamond that you present for certification.
'Low quality' diamonds are industrial diamonds, which make up about 80% of all diamonds mined. 'Low quality' diamonds used in jewelery could be cloudy with visible inclusions or could be poorly cut.
There's really nothing 'inconvenient' about a diamonds, except that they are valuable, and require enhanced security during transport, fabrication and sale.