DIAMOND POLISH

Polish is a measure of how smooth and shiny each facet of a diamond is after it is cut. It affects how well light reflects off the diamond’s surface. Polish is graded by gemologists on a scale from Excellent/Very Good/Good/Fair and Poor.

Think of a glass tabletop in comparison to an unsanded wood tabletop! That would be an example of both extremes, Excellent on one side and Poor on the other. Remember, diamonds are cut with diamonds(a diamond wheel acts as the “sandpaper” in the polishing process).

During the polishing process, the goal is to achieve as smooth and as glasslike a quality as possible, unfortunately, based on who is polishing the stone, it doesn't always work out as planned. Sometimes, polish lines or "marks" are left on the surface of the diamond thereby suggesting the diamond was not "finished" properly. This is all examined under 10x magnification and will be noted on the grading report.

Diamonds are polished by forcing them against a spinning disk(wheel) with a diamond abrasive. This process creates facets on the diamond that reflect and refract.

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