Bandox Extreme Unfortunately sometimes this process is done to deceive a buyer. It is a relatively easy process to perform, it has been around for many years (although the coatings materials are much better now), and it does not require a lot of expensive high tech equipment. Recently, I've seen some pink coated diamonds on the market, they are very attractive.... and of course you would have to purchase them knowing that they have been coated and follow your jeweler's guidelines about owning and caring for these color enhanced diamonds.
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