Top 5 Tips To Buying A Great Emerald Cut Diamond

If you are set on getting an emerald cut diamond here are some tips to make sure you get a beautiful one.

Most online jewelers allow you to search for all of the parameters I list below in this article. I have created a direct link to emerald diamond search pages at James Allen, Brian Gavin Diamonds, Blue Nile, and Leibish at the end of this article for your convenience.

 

The demand for different diamond cuts varies year by year. Since emerald cut diamonds occasionally make their way into the news with some celebrity sporting an emerald cut I decided to write a little bit about how to go about finding the best emerald cut diamond.

1 Get The Definition Right

Emerald Cut diamonds are oblong step cut diamonds with a large, open table. The corners are truncated. This is done to avoid points of weakness.

An Emerald Cut DiamondCategorized as a fancy cut, the emerald cut was originally developed for the cutting of emeralds, and came into vogue as a popular fancy cut diamonds during the Art Deco period.

This shape, which is usually known as emerald cut diamond, step cut, or trap-cut accentuates a diamond’s clarity. The large table makes it easy to see right into the diamond.

Like other fancy shaped diamonds, emerald cut diamonds can come in a variety of length to width ratios. The classic outline of emerald cut diamonds usually have a ratio of 1.00:1.50 though ratios of up to 1.00:1.75 are also found to be pleasing to the eye. If the diamond has a 1.00:1.00 ratio it is usually called an Asscher cut.

2. Emerald Cut Diamonds Aren’t Given Ideal Cut Grades

You have to work this out yourself. Get help from your jeweler if at all possible.

Ideal proportion is not as clearly defined for emerald cut diamonds as it is for round cut diamonds. Emerald Cut diamonds, as is the case with many other types of fancy cut diamonds, are cut into a variety of slightly differing proportions. These variations, particularly in the pavilion, make the science of light performance extremely complex for fancy shapes. As a result you will not find any cut grades noted on grading reports issued for fancy cuts. This means you will rely more on the jeweler to help you with choosing your fancy cut stone. For this reason it is quite important to choose the jeweler carefully before getting too caught up in the details of diamond geometry.

There are some guidelines to follow when choosing an emerald cut diamond which can help but the truth is that without extensive diamond experience this will only get you so far. A trained gemologist is much more likely be able to help you find what you are looking for as they will know a lot more about the subtle differences between different emerald cut diamonds.

 

Best Options For Emerald Cut Diamonds

3. Look For Clearer Diamonds

Clarity

The shape of Emerald cut diamonds, with its large open table, makes it well suited to show off higher clarity grades.

Clarity grades for emerald cut diamonds are shown on the diamond lab grading report (unlike cut grade, for which, as far as fancy cut diamonds go, there is no established science).

Since the clarity of emerald cut diamonds or other step cut diamonds is going to be much more obvious it’s advisable to select from the following range:

  • VS2
  • VS1
  • VVS2
  • VVS1
  • IF

4. The Least Color Is Not Necessarily The Best

A slightly warmer color range is often considered to be as nice or even nicer than cooler color grades. This is due, in part, to the large open table on emerald cut diamonds. Another reason is that the light play is considerably different in an emerald cut diamond when compared to a round brilliant. The choice of color grade is therefore up to your personal preference.

Warmer colors are found among the following colors on the GIA color scale:

  • L
  • K
  • J
  • I
  • H
  • G

Cooler tones will be found among the color grades that are near colorless on the GIA color scale:

  • F
  • E
  • D

The following video is of an emerald diamond that has a slightly warmer color (the L color on the GIA scale) and you can see that it looks gorgeous. Also note how the large table allows the viewer to peer into the diamond and appreciate its clarity.

 

5. It’s All About The Ratio

While the actual cut grade for fancy cut diamonds like the emerald cut is not something that has been firmly established in the diamond industry* there are certain ratios which seem to work better than others and which would place a diamond in a better cut grade if this were something that laboratories were prepared to include on the diamond grading report. Some of the grades listed below are subjective and it’s an area where opinions do vary even between specialists.

*Even round brilliant cuts, which have been the subject of a great deal of study, can still have variability even among diamonds that have all received a top grade. Finding a good jeweler to deal with is always more important than just looking at a grading report. Check out the list of recommended diamond jewelers on our home page.

Having said that, here are some numbers which can serve as a rough guide:

Emerald Cut Brilliance Guide

Recommended Table Depth %
NOT recommended
Excellent Cut Very Good Cut Good Cut Fair Cut Average Cut
60% to 65% 58% to 69% 57% to 74% 56% to 78% 53% to 80%
Recommended Table %
NOT recommended
Excellent Cut Very Good Cut Good Cut Fair Cut Average Cut
58% to 69.5% 57% to 72% 57% to 74% 56% to 74% 53% to 76%
Recommended Length to Width Ratio
Excellent Cut Very Good Cut Good Cut
1.00:1.50 to 1.00:1.75

1.00:1.26 to 1.00:1.49
&
1.00:1.76 to 1.00:1.99

1.00:1.26 to 1.00:1.49
&
1.00:1.76 to 1.00:1.99

Additional Factors for best results

Fluorescence None or Faint
Polish Excellent to Good
Symmetry Excellent to Good

 

View Emerald Cut Diamonds at JameAllen.com

View Emerald Cut Diamonds at Brian Gavin Diamonds,

Also check out Blue Nile,

and Leibish.

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mytop10diamondwebsites@gmail.com

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