'Clean diamond' is a term used by a non-gemologist to express an opinion about the lack of visible flaws in a diamond.
I think you are asking if a natural clean diamond is worth as much as a natural diamond that is Not considered clean? The answer is no. A clean diamond means that it is clear from imperfections. Now this can mean clear to the naked eye, or clear under a microscope. Of course the diamond that is clear under the microscope is much worth more than a diamond that is only clear to the naked eye.
A clean diamond is a diamond that has not come from countries that fund violent civil conflicts in many African countries. You may have heard of a "blood diamond"
You clean a man made diamond the same way that you would clean any other diamond. Chemically speaking there is absolutely no difference between a diamond that is made by a man made process and a diamond that was made by a geologic process.
Sorry but we do not understand your question???
To clean a diamond, you can soak it in a mixture of warm water and mild dish soap, then gently scrub it with a soft-bristled toothbrush. After cleaning, rinse the diamond thoroughly with clean water and pat it dry with a soft, lint-free cloth. Avoid using harsh chemicals or cleaners that can damage the diamond.
polish carefully
Probably. After boiling, a diamond would be very clean.
Bathing a diamond in hydrogen peroxide may result in a Very Clean Diamond.
Testing a diamond in Clorox would only result in a Very Clean Diamond.
There are various ways to clean vintage diamond rings such as using a toothbrush, soap, and a bowl of water. One should apply ivory soap and gently scrub the diamond ring in the water.
The provenance of a conflict diamond will be clouded, unclear and usually illegal. A Kimberly Process certified diamond shows the stone's origin and its documented journey from mine to broker. Otherwise, a diamond is a diamond is a diamond.
The Diamond Lane is the carpool lane in California. The cars that are allowed in these lanes are White Clean Air and Green Clean Air vehicle sticker cars.