You now have a good overview of the more common methods used to artificially enhance the appearance of natural diamonds. Each of these methods can improve the beauty of less desirable stones and also make the them appear more valuable. The challenge is to separate the treated stones from the natural, unadulterated diamonds. You do not want to be sold a treated stone when you are seeking a natural diamond. Similarly, if you choose to purchase a treated diamond, you do not want to pay too much.
Diamond treatments are a fact of life.
Any knowledgeable seller will be happy to discuss and educate you about the various treatment processes. If they are not, then they are either unknowledgeable about diamonds or they are trying to deceive you. In either, case you do not want to do business with them. When purchasing a diamond or other expensive gemstone, become educated about the market and comparative shop. If you do not have the time, hire a qualified broker who will act on your behalf and help you find the best gemstone that matches your needs and pocket book.