There are several factors that determine the quality of a diamond, the most well-known of which are the “Four Cs.” But these are not the only variables here – another that’s well worth mentioning and has a direct connection to other diamond qualities, plus to the cost of a given diamond, is diamond polish.
At AAA Jewelers, we’re proud to offer a wide range of certified GIA diamonds for a variety of needs, from engagement rings to wedding bands, fashion jewelry and more. We also offer jewelry appraisals for any jewelry type, including diamonds. How does diamond polish work, what are the GIA grades for polish quality, and what other important polish factors should you be keeping in mind during any diamond purchase? This two-part blog series will go over several areas.
Diamond polish refers to the quality and condition of the facet surfaces on a given diamond. Facets on a diamond act like microscopic mirrors, reflecting light in several ways that brings the stone its sparkle and shine that many buyers prioritize.
If a diamond’s facets are smooth and clear, they will reflect light well. If they are not, however, they can alter light reflection, making the diamond appear dull. Additionally, rough diamonds often have tiny crystal bumps on their facets – polishing, however, removes these bumps and can achieve a higher polish grade in some cases.
Here are the grades for diamond polish as certified by GIA:
There are a number of specific factors that go into determining a diamond’s polish grade, often involving small blemishes and how significant they’re judged to be. Such blemishes or related areas include:
For more on diamond polish and why it’s important, or to learn about any of our diamond jewelry services, speak to the staff at AAA Jewelers today.