Diamond Table Percentage: The Basics

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When you’re trying to find that perfect diamond, you might bump into a term called “table percentage.” It’s an advanced point in choosing a diamond, but once you understand the table percentage, it can help you choose a diamond that really stands out. So, let’s break it down, easy and clear.

What is a Diamond Table?

The table of a diamond is the flat top surface you can see when the stone is face up. It’s the part of the diamond’s anatomy and the largest facet of the diamond and plays a big role in how the stone captures and reflects light. In short, it’s a big deal for the diamond’s sparkle. The table percentage is calculated by dividing the width of the table (the top flat part) by the width of the diamond at its widest point. This number is usually given as a percentage. So, if you’re looking at a diamond’s report or certificate, you’ll find this number listed, saving you from having to measure it yourself.

The Perfect Table Percentages for a Round Diamond

The Perfect Table Percentages for a Round Diamond

The ideal table percentage is often debated for a round diamond, which is the most popular shape. However, a good range to stick to is between 54% and 57%. This range is considered to provide the best balance of brilliance (that’s the sparkle) and fire (the rainbow colors you see in the light). 

But it’s not a one-size-fits-all. Remember, that the “Excellent” cut in diamonds in different grading systems, like GIA or IGI is the result of what people prefer the most.  Someone who might prefer a bit more sparkle and go for a slightly higher table percentage, up to 60%. Others might want to emphasize the diamond’s depth and opt for a lower percentage, around 53%. And that’s perfectly fine. The key is to look at the diamond in different lights and see how it plays with the light.

Different Shapes of the Diamond: What’s the Perfect Table

Diamond Shape Ideal Table Percentage
54% - 57%
67% - 72%
53% - 63%
53% - 63%
53% - 63%
Emerald and Asscher
61% - 69%

While the table percentage is important, it’s not the only thing you should look at. It’s the upper piece of the diamond puzzle. You also want to consider other aspects of the cut, the clarity, color, and, of course, how much you like the diamond when you see it. Sometimes, a diamond just speaks to you, and that’s worth more than any number.

The table percentage plays a big role in how your diamond catches the light and sends it dancing back to your eyes. A well-proportioned table can make your diamond look like a tiny disco ball of light, while a not-so-great one can leave it looking a bit dull. So, knowing what to look for in table percentage can help you pick a stone that really lights up the room.

This table gives you a quick look at what table percentages are generally considered best for different shapes of diamonds. Remember, these are guidelines to get you started on finding a beautiful diamond that looks good to you.

Picking the right diamond is about more than just numbers. It’s about how the stone makes you feel when you look at it. The table percentage is a useful tool, but it’s not the only thing that matters. Pay attention to how a diamond reflects light and makes you feel. After all, the perfect diamond is the one that speaks to you, numbers aside.

In the end, finding the right diamond is a personal journey. With a little bit of knowledge about table percentages, you’ll be equipped to make a choice that lights up your world. So, take your time, look around, and find that perfect stone that catches your eye and doesn’t let go.

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Picture of Maria
Having a love for jewelry, I analyze, compile and publish the most useful posts among jewelry blogs.