What Is Diamond Polish And How Does It Affect A Diamond

Polished Rough Diamond

Even though diamonds are generally considered to be some of the most beautiful and precious stones in existence, there are some diamonds that are simply not up to the standards that people come to expect when they wish to buy a diamond. These diamonds are the one with high amounts of color hues present within them (we are referring to colorless diamonds and not fancy colored diamonds), as well as those that possess many inclusions and imperfections that affect the diamond’s visible appearance.

Apart from the color and clarity ratings of a diamond, its cut quality also plays a significant role in how it will look. When a diamond is cut too shallow or too deep, then light will not reflect in a good way; thus reducing the fire, sparkle and, of course, the brilliance of the particular diamond in question. Today, we want to take a look at another factor that also has an effect on the diamond – the diamond polish. We would like to take a look at what exactly diamond polish is and how it could affect the visible appearance of a diamond.

What You Need To Know About Diamond Polish

When a person is interested in buying a particular diamond and requests the diamond grading certificate, they will be presented with a list of qualities awarded to that particular diamond. Amongst these qualities, they will see the diamond’s exact carat weight, as well as be able to observe the diamond’s clarity and color grades. Additionally, the cut quality will also be mentioned and will usually be split into multiple categories to help the person understand each aspect of the diamond’s cut – including the processes that were conducted after the diamond’s cutting process was completed.

Diamond PolishingDiamond polish is one of the terms that will be mentioned here. Diamond polish is a polishing process that occurs after an expert has cut a diamond into a particular shape. The polishing is done with a special device that is lined with diamond dust. The finer the diamond dust on the polishing wheel, the better the polish is usually. Additionally, the duration for which the diamond is polished may also have an effect on how smooth the diamond appears after this particular process.

When it comes to the polish attribute of a diamond, it is very important to note that it is not always necessary to opt for a diamond with an excellent polish rating. The reason behind this is that, to the naked eye, not much of a difference can be observed between diamond with a “good” polish grade, one with a “very good” polish grade and one with an “excellent” polish grade, yet the price of these three diamonds will defer – with the “excellent” rated diamond being more expensive than the other two options. Thus, it may be better to opt for a “very good” or a “good” polish and save some money in the process.


A diamond is graded upon many different features and qualities, and only when these qualities are at a certain minimum, will the diamond truly look good to the naked eye. Amongst the numerous qualities that are graded during a diamond appraisal, the cut quality often tends to stand out amongst the rest. If the diamond was not cut correctly, then light will not be reflected appropriately. Another particular factor that needs to be considered is the diamond polish, a term that refers to how well the diamond was polished following the cutting process. Here, we have provided a basic overview of what diamond polish is and what to consider when looking at the polish quality of a diamond you wish to purchase.


Rate this post


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.