8.23ct Emerald (13.23×9.5×5.9) vs 10ct Emerald (15×10.1×6.57)
Diamond size comparison
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| 8.23 ct Emerald (13.23×9.5×5.9mm) | 10 ct Emerald (15×10.1×6.57mm) |
Cutting style
Step cut
Step cut
Weight
8.23 ct
10 ct
Measurements
13.23×9.5×5.9 mm
15×10.1×6.57 mm
L/W ratio
1.39
1.49
Face-up size
Adequate
Adequate
This diamond LOOKS its weight!
This diamond LOOKS its weight!
Actual diamond size
Before purchasing a diamond, one should make sure it looks its weight.
It's important to understand that
carat weight does not equal face-up size.
Two diamonds of exactly the same weight (and shape) can vary quite considerably in face-up size. This depends on the proportions of the cut (e.g., deep cuts will face up smaller).
Here you can see the actual sizes of 8.23ct Emerald (13.23×9.5×5.9mm) and 10ct Emerald (15×10.1×6.57mm) as they would appear on a ring and finger.
Adjust the ring and finger size to get an idea of how these stones would look on your finger. To choose different diamonds or to change diamond parameters click here.
Two diamonds of exactly the same weight (and shape) can vary quite considerably in face-up size. This depends on the proportions of the cut (e.g., deep cuts will face up smaller).
Here you can see the actual sizes of 8.23ct Emerald (13.23×9.5×5.9mm) and 10ct Emerald (15×10.1×6.57mm) as they would appear on a ring and finger.
Adjust the ring and finger size to get an idea of how these stones would look on your finger. To choose different diamonds or to change diamond parameters click here.
Settings
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Ring:
Skin tone:
Ring width: 3.0 mm
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Face-up area is a measure of the size of the diamond
when viewed from the top (as set in a ring).
It tells you how big the diamond is at the girdle plane. It's important for a diamond to have sufficient face-up size for its carat weight.
It tells you how big the diamond is at the girdle plane. It's important for a diamond to have sufficient face-up size for its carat weight.
| 8.23ct Emerald (13.23×9.5×5.9mm) | |
| 10ct Emerald (15×10.1×6.57mm) | |
| Difference: 24.53mm² (21%) |
10 carat Emerald (15×10.1×6.57mm) has approx. 21% more face-up area than 8.23 carat Emerald (13.23×9.5×5.9mm).
To learn about the accuracy of these numbers, click here.
Quick Buying Guide
Diamond prices vary greatly as they depend on the combination of unique characteristics (4Cs - Cut, Color, Clarity, and Carat). For best value, it's important to choose the combination that will reduce the price without having a negative impact on appearance.
Each shape has its own recommended balance of qualities that will give you the most bang for your buck. For Emeralds, best value recommendation is VS2 clarity (make sure it's eye-clean) and color H. Below is a quick buying guide to give you an idea, but for more detailed explanation, please see the complete buying guides for the respective diamonds (links below).
Each shape has its own recommended balance of qualities that will give you the most bang for your buck. For Emeralds, best value recommendation is VS2 clarity (make sure it's eye-clean) and color H. Below is a quick buying guide to give you an idea, but for more detailed explanation, please see the complete buying guides for the respective diamonds (links below).
8.23ct Emerald (13.23×9.5×5.9mm)
10ct Emerald (15×10.1×6.57mm)
Min. clarity
VS or better
VS or better
Min. color (platinum setting)
H+
H+
Min. color (yellow gold setting)
I+
I+
Depth percentage
60 - 69%
60 - 69%
Table percentage
58 - 69%
58 - 69%
Length-to-width ratio
1.25 - 1.65
1.25 - 1.65
Min. polish/symmetry
Good or better
Good or better
Additional Info
8.23ct Emerald (13.23×9.5×5.9mm)
10ct Emerald (15×10.1×6.57mm)
Face-up size
Normal for 8.23 carat Emerald
Normal for 10 carat Emerald
Facets
usually 58
usually 58
Length
13.23 mm
15 mm
Width
9.5 mm
10.1 mm
Depth
5.9 mm
6.57 mm
Gram weight
1.65 g (0.0581 ounces)
2 g (0.0705 ounces)
Points
823 pts
1000 pts
Volume
467.61 mm³
568.18 mm³
Compare diamonds
Choose diamonds to compare:
Popular comparisons:
- 8.19ct Emerald (12.7x11.37x6.56) vs. 5.12ct Emerald (12.23x8.86x5.43)
- 8.2ct Emerald (13.31x9.97x6.41) vs. 10ct Emerald (14.5x11.98x7.03)
- 8.26ct Emerald (14.18x9.55x6.1) vs. 6.08ct Pear (15.85x10.11x6.4)
- 8.25ct Emerald (15.22x9.32x6.27) vs. 5.95ct Emerald (12.29x9.49x5.81)
- 8.25ct Emerald (13.5x10x6.5) vs. 1ct Round (6.5x6.5x3.92)
- 8.14ct Emerald (13.42x9.46x6.28) vs. 7.09ct Emerald (12.55x9x6.1)
- 8.23ct Emerald (13.43x9.57x6.49) vs. 6.9ct Pear (17.47x10.47x6.21)
- 8.32ct Emerald (11.8x13.7x7.67) vs. 4.27ct Radiant (9.5x10.5x6.08)
- 8.23ct Emerald (13.43x9.57x6.22) vs. 5.05ct Oval (13.72x9.79x5.97)
Depth percentage for 8.23 carat Emerald (13.23×9.5×5.9mm)
Depth percentage of Emerald cut is the ratio of the total depth (measured from table to culet)
to its width. The total depth percentage of this diamond
is 62.1%, which is OK.
(Recommended depth percentage for Emeralds is between 60% and
69%)
Depth percentage for emeralds is calculated with the following formula:
Depth percentage for emeralds is calculated with the following formula:
Depth % = (total depth ÷ width) × 100
8.23 carat
Emerald
(13.23×9.5×5.9mm) depth %:
Total depth: 5.9 mm
Width = 9.5 mm
Width = 9.5 mm
Depth % = (5.9 ÷ 9.5 ) × 100 = 62.1%
Depth percentage for 10 carat Emerald (15×10.1×6.57mm)
Depth percentage of Emerald cut is the ratio of the total depth (measured from table to culet)
to its width. The total depth percentage of this diamond
is 65%, which is OK.
(Recommended depth percentage for Emeralds is between 60% and
69%)
Depth percentage for emeralds is calculated with the following formula:
Depth percentage for emeralds is calculated with the following formula:
Depth % = (total depth ÷ width) × 100
10 carat
Emerald
(15×10.1×6.57mm) depth %:
Total depth: 6.57 mm
Width = 10.1 mm
Width = 10.1 mm
Depth % = (6.57 ÷ 10.1 ) × 100 = 65%
About Depth Percentage
Depth percentage is one of the most important measurements as it plays a critical role in diamond's
appearance. If a diamond is cut too deep or too shallow, light leaks out, making
the stone less brilliant and fiery. Deep cuts also add hidden weight.
Diamonds that fall out of recommended depth range are generally less desirable and usually best to be avoided.
Diamonds that fall out of recommended depth range are generally less desirable and usually best to be avoided.
Face-up size evaluation for 8.23 carat Emerald (13.23×9.5×5.9mm)
The face-up size of this 8.23 carat Emerald
(13.23×9.5×5.9mm) is within the normal range for
8.23ct diamonds of this shape.
Compared to 8.23ct
Emerald reference diamond (see below), this diamond is of adequate
size when viewed from the top. In short, all is OK, this diamond looks its weight.
Proper face-up size should play an important role when buying a diamond. When a diamond is set in a ring, your eyes will only see the face-up area, so you should make sure it's of adequate size. Adequate size also indicates a good cut, meaning better light performance. For example, if given a choice between a poorly cut 8.2 carat Emerald with less sparkle and the same face-up size as a well cut 7.8ct Emerald, which one would you choose?
The importance of face-up size
Diamonds are sold by weight (carats), but it's important to understand that weight doesn't equally translate into physical size, especially spread. Two diamonds of the same carat weight can vary greatly in spread, meaning that one diamond can appear larger than the other, even though they weight exactly the same.Proper face-up size should play an important role when buying a diamond. When a diamond is set in a ring, your eyes will only see the face-up area, so you should make sure it's of adequate size. Adequate size also indicates a good cut, meaning better light performance. For example, if given a choice between a poorly cut 8.2 carat Emerald with less sparkle and the same face-up size as a well cut 7.8ct Emerald, which one would you choose?
The bottom line:
A diamond must look its weight. This one does. Thumbs up.
8.23 carat Emerald reference diamond
Since there are no specific ideal proportions defined for Emerald cuts,
an estimation formula is used to calculate the Emerald reference diamond.
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Note: Emerald diamonds with face-up area of within 9% lower
and 12% higher than reference Emerald diamond area
are considered to be of adequate face-up size.
* Estimated Face-up area: Face-up area of Emerald cuts
is only an estimation (±4%). Due to uniqueness of each stone,
it's impossible to accurately calculate face-up area given only a diamond's measurements.
To learn more about diamond size evaluation, click here.
Face-up size evaluation for 10 carat Emerald (15×10.1×6.57mm)
The face-up size of this 10 carat Emerald
(15×10.1×6.57mm) is within the normal range for
10ct diamonds of this shape.
Compared to 10ct
Emerald reference diamond (see below), this diamond is of adequate
size when viewed from the top. In short, all is OK, this diamond looks its weight.
Proper face-up size should play an important role when buying a diamond. When a diamond is set in a ring, your eyes will only see the face-up area, so you should make sure it's of adequate size. Adequate size also indicates a good cut, meaning better light performance. For example, if given a choice between a poorly cut 10 carat Emerald with less sparkle and the same face-up size as a well cut 9.5ct Emerald, which one would you choose?
The importance of face-up size
Diamonds are sold by weight (carats), but it's important to understand that weight doesn't equally translate into physical size, especially spread. Two diamonds of the same carat weight can vary greatly in spread, meaning that one diamond can appear larger than the other, even though they weight exactly the same.Proper face-up size should play an important role when buying a diamond. When a diamond is set in a ring, your eyes will only see the face-up area, so you should make sure it's of adequate size. Adequate size also indicates a good cut, meaning better light performance. For example, if given a choice between a poorly cut 10 carat Emerald with less sparkle and the same face-up size as a well cut 9.5ct Emerald, which one would you choose?
The bottom line:
A diamond must look its weight. This one does. Thumbs up.
10 carat Emerald reference diamond
Since there are no specific ideal proportions defined for Emerald cuts,
an estimation formula is used to calculate the Emerald reference diamond.
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Note: Emerald diamonds with face-up area of within 9% lower
and 12% higher than reference Emerald diamond area
are considered to be of adequate face-up size.
* Estimated Face-up area: Face-up area of Emerald cuts
is only an estimation (±4%). Due to uniqueness of each stone,
it's impossible to accurately calculate face-up area given only a diamond's measurements.
To learn more about diamond size evaluation, click here.
Face-up Area per Carat
Face-up area per carat is calculated by dividing face-up area of the diamond with
its carat weight. It tells you how many square millimeters of the top surface area
a diamond is showing or would show for 1 carat weight. This can be useful when comparing stones
of similar weights as it tells you how much spread per carat you will get.
Note: Face-up size does not linearly grow with carat weight,
which means the heavier the stone, the smaller its face-up area per carat (e.g., 1ct stone will have
higher face-up area per carat than 2ct stone).
Face-up area per carat
for 8.23ct Emerald (13.23×9.5×5.9mm):
Top surface area = 119.4 mm²
Weight = 8.23ct
Face-up area per carat = 119.4 ÷ 8.23 = 14.51mm²/ct
Weight = 8.23ct
Face-up area per carat = 119.4 ÷ 8.23 = 14.51mm²/ct
Face-up area per carat
for 10ct Emerald (15×10.1×6.57mm):
Top surface area = 143.93 mm²
Weight = 10ct
Face-up area per carat = 143.93 ÷ 10 = 14.39mm²/ct
Weight = 10ct
Face-up area per carat = 143.93 ÷ 10 = 14.39mm²/ct
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