A Guide To Understanding Clarity Enhancement And Treated Diamonds

It is quite rare to find a diamond that is 100% perfect in all factors – this would include a perfect color grade, an excellent cut quality and, of course, absolutely no imperfections to be observed on the surface of the diamond. Such a diamond is extremely rare, yet highly sought after. When a person finds such a diamond, they can consider themselves very lucky – but, at the same time, they would also have to reach deep into their wallet in order to be able to afford such a rare finding.

For those seeking a diamond that looks flawless and perfect to the naked eye, but without having to pay as much as a million dollars for such a rare gemstone, an alternative option do exist. This option is called treated diamonds – an option where a diamond has gone through a process known as “clarity enhancement”. Many of these diamonds can look flawless to the naked eye, yet still be affordable for the person looking to buy a diamond that looks good without having to pay blow all his savings in one go.

What Is Clarity Enhancement

The term “clarity enhancement” is used to describe any process that has been utilized to treat imperfections that are visible. There are multiple processes that can be used to serve this purpose, and it is important for a person opting for a treated diamond to know which particular process will offer them the best value for their money – the primary reason people opt for treated diamonds are, after all, to obtain a diamond that offers them better value for their money – a flawless looking diamond at a lower price than a naturally flawless stone.

There are four primary types of clarity enhancement that can be utilized in order to improve the physical appearance of a diamond. Let’s consider how each of these processed work:

  • Deep Boiling – Deep boiling is the most common process utilized to treat a diamond that contains imperfections and it is also the cheapest option available. With deep boiling, a diamond is placed in an acidic solution that has been specially prepared for the purpose of this particular process. The diamond is then boiled in this solution for a particular time period. Note that deep boiling is only useful when a diamond contains black inclusions that reach the surface of the diamond after it has been cut.
  • Laser Drilling – When a diamond contains black inclusions that do not seem to reach the surface of the diamond, even after it has been cut, then laser drilling is the most common option to treat such a diamond. A laser drill is used to cut into the inclusion so that it reaches the surface. Deep boiling is then used to further treat the diamond.
  • Special Laser Drilling – This process is very similar to the standard laser drilling procedure. In both procedures, a laser drill is utilized. In special laser drilling, however, a tunnel is not cut into the diamond, but rather a plane-shape to minimize the amount of intrusion.
  • Fracture Filling – Fracture filling has also become a relatively popular option for treating a diamond. With this type of clarity enhancement procedure, a special solution, which consists of silicon and some other material, is utilized to fill cavities found in a diamond. Fracture filling is often used in combination with special laser drilling for better results.


The process of treating a diamond that contains cavities, often known as clarity enhancement, tend to provide a person with a much more affordable choice when searching for a diamond that looks flawless to the naked eye. There are different clarity enhancement processes that can be utilized to improve the appearance of a diamond, each with its own pros and cons to be considered. In this post, we provided a quick overview of the primary types of clarity enhancement processes that can be utilized to treat a diamond; thus offering our readers more knowledge so that they can make an appropriate choice when choosing such a diamond.


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Kevin Lee is a former tech advisor who cut his teeth in Silicon Valley. He now spends his time sharing his passion for investing in diamonds and jewelry. You can reach Kevin for any comments by using the contact form on this site. Don't forget to sign up for his free "Investing 101 Guide" by clicking on the button at the top right of this website.