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How many facets?
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The approximate number of facets of an Emerald Cut gemstone is 58 (25 crown, 8
girdle & 25 pavilion).
What does it look like?
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The Emerald Cut Looks like a rectangle from the top, with truncated corners.
These can be beautiful gemstones with stepped facets; the sheen tends to
display large flashes of these stepped angles on the pavilion of the gem.
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The "Step Cut" has rows of facets that resemble a staircase and usually
are four-sided or elongated. It is known as a step cut because its concentric
broad, flat planes resemble stair steps.
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The flat planes of the outside edges allow for a variety of side gemstones
shapes. Generally, the optimum length-to-width ratio should be 1.35-1.65:1,
although 1.25:1 to 1.75:1 is considered to be acceptable.
What works best for Emerald Cut?
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With this cut, colour plays a very important role in the beauty of the
gemstone. Colour tends to show very dramatically in Emerald Cut Diamonds.
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The Emerald Cut was developed specifically for Emeralds to reduce the amount of
pressure exerted during cutting and to protect the gemstone for chipping.
Today, modern cutting techniques make this less important and it is used for a
wide variety of gem types.
Because of the angle, size & shape of the facets, this cut shows less brilliance
& fire (dispersion) than other brilliant cut diamonds. However, the emerald
cut stone reveals a classic beauty & elegance not seen in other cuts.
Because of the open & large facets, we recommend a higher colour &
clarity than you might consider for a brilliant cut stone because they are more
likely to become visible at lower grades. The classic emerald has a
length-to-width ratio of 1.50, the recent trend is toward the more square
shape.
The Quality Diamonds Basic Grading Chart has been used to determine
the quality of individual stones we sell on this website, using Table and Depth
percentages to give a general guide to a stones quality. We have used this
simplified method to assist customers who prefer not to delve into very
specific details, after all, if you are not completely satisfied with your
purchase, you have the right to a full refund, or to exchange your diamond for
30 days.
Quality Diamonds Basic Grading Chart
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Table %
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60.0%-65.5%
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59.0%-68.0%
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58.0%-69.5%
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57.0%-72.0%
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56.0%-74.0%
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53.0%-76.0%
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50.0%-78.0%
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<50.0%
>78.0%
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Total Depth %
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60.0%-65.0%
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58.0%-69.0%
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57.0%-74.0%
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56.0%-78.0%
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53.0%-80.0%
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<53.0%
>80.0%
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The Full Grading Chart is the recognised chart for grading diamonds
right down to the finest detail. This chart is intended for the true
perfectionist and as such, you may want to call us on 0800 612 1017 to talk to
a diamond expert to ensure you are getting exactly what you require.
Full Grading Chart
|
Table %
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60.0%-65.5%
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59.0%-68.0%
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58.0%-69.5%
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57.0%-72.0%
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56.0%-74.0%
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53.0%-76.0%
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50.0%-78.0%
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<50.0%
>78.0%
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Crown Height %
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12.0%-15.0%
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11.0%-16.0%
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10.0%-16.5%
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9.0%-17.2%
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8.0%-18.0%
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7.0%-19.5%
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6.0%-20.5%
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<6.0%
>20.5%
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Girdle Thickness
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Very thin to Slightly thick
Or
Thin to Thick
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Very thin to Thick
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Very thin to Very thick
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Extremely thin to Extremely thick
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Total Depth %
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60.0%-65.0%
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58.0%-69.0%
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57.0%-74.0%
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56.0%-78.0%
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53.0%-80.0%
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<53.0%
>80.0%
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Polish / Symmetry
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Good to Excellent
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Fair to Good
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Poor to Fair
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