Understanding The Different Diamond Cut Grades

Understanding The Different Diamond Cut Grades

October 25, 2017

An estimated $13 billion worth of rough diamonds are produced per year.

There may be a wealth of diamonds on the market, but how do you know you're getting a quality product?

The secret lies in the "Four C's": Carat, Color, Clarity, and Cut. It's important to understand all four aspects of diamond grading before making a purchase. But choosing a quality cut is arguably the most important aspect when it comes to evaluating a diamond's value.

Cut is a measure of workmanship that goes into the diamond. A good cut can have a huge impact on the diamond's beauty. Read this guide to understand the different diamond cut grades so you can make an informed choice.

Understanding Diamond Cut Grades

Proportions

What word comes to mind when you think of diamond jewelry? It's probably some combination of dazzling, shining, or shimmering.

The proportions of the cut are what give the diamond it's sparkling transparency. Diamond cut grades are largely based on how facets are placed in conjunction with their different angles.

The crown facets allow light to enter diamonds. The pavilion facets function as a mirror and reflect light inside the diamond, causing it to bounce around then return to your eye in the form of a sparkle.

By placing these facets at precise locations and angles, the cutter can maximize light and reflection. In turn, the proportions can impact the overall beauty of a diamond to a prospective buyer.

Symmetry

Diamond cut grades are also based on symmetry. This is the measure of how well facets match each other.

The symmetry grade is based on the accuracy of facet placement and meet points. It's also determined by how close the different facet groups match in size.

A diamond that is well cut will have excellent symmetry. When comparing the different facets, you won't be able to make a clear distinction between them.

The placement depends on the type of diamond. For instance, round brilliants position the crown and pavilion at 45 degrees while star facets position them at 22.5 degrees. The cut grade is based on how close the placement is to the desired angles.

Polish

Your diamond could have great symmetry and proportions. However, it could still have a poor grade if it does not have a good polish.

Polish is a measure of the surface finish. A diamond will be graded poor or fair if it has a rough texture that prevents light reflection.

Conversely, a diamond with a quality cut will be rated as very good or excellent. This means the surfaces are clear of abrasions, marks or defects. They must also meet strict lab standards to receive this rating.

Finding Good Diamond Cut Grades

All diamonds are graded on their cut. By understanding the methodology behind the grading, you can better understand what to look for in your diamond.

Pay attention to the proportions, symmetry, and polish when you are thinking of making a purchase. It can help you find the diamond of your dreams.

Are you looking to buy a diamond? We can help.

Come visit our retail store to talk to a jewelry expert and find the perfect piece you desire.




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