7.12ct Cushion (10.76×10.31×6.71) vs 6.24ct Radiant (12.04×10.6×6.25)
Diamond size comparison
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| 7.12 ct Cushion (10.76×10.31×6.71mm) | 6.24 ct Radiant (12.04×10.6×6.25mm) |
Cutting style
(modified) brilliant
Mixed
Weight
7.12 ct
6.24 ct
Measurements
10.76×10.31×6.71 mm
12.04×10.6×6.25 mm
L/W ratio
1.04
1.14
Face-up size
Borderline
Borderline
This diamond BARELY looks its weight!
This diamond is borderline SPREAD CUT!
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 7.12ct Cushion (10.76×10.31×6.71mm) and 6.24ct Radiant (12.04×10.6×6.25mm) 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.
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 7.12ct Cushion (10.76×10.31×6.71mm) and 6.24ct Radiant (12.04×10.6×6.25mm) 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.
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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.
| 7.12ct Cushion (10.76×10.31×6.71mm) | |
| 6.24ct Radiant (12.04×10.6×6.25mm) | |
| Difference: 21.4mm² (21%) |
6.24 carat Radiant (12.04×10.6×6.25mm) has approx. 21% more face-up area than 7.12 carat Cushion (10.76×10.31×6.71mm).
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. 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. 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).
7.12ct Cushion (10.76×10.31×6.71mm)
6.24ct Radiant (12.04×10.6×6.25mm)
Min. clarity
SI1 or better
SI or better
Min. color (platinum setting)
H+
H+
Min. color (yellow gold setting)
J+
J+
Depth percentage
59 - 70%
59 - 70%
Table percentage
56 - 70%
58 - 70%
Length-to-width ratio
1.00 - 1.35
1.00 - 1.35
Min. polish/symmetry
Good or better
Good or better
Additional Info
7.12ct Cushion (10.76×10.31×6.71mm)
6.24ct Radiant (12.04×10.6×6.25mm)
Face-up size
A bit small for 7.12 carat Cushion
A bit large for 6.24 carat Radiant
Facets
usually 58
usually between 62 - 70
Length
10.76 mm
12.04 mm
Width
10.31 mm
10.6 mm
Depth
6.71 mm
6.25 mm
Gram weight
1.42 g (0.0502 ounces)
1.25 g (0.044 ounces)
Points
712 pts
624 pts
Volume
404.55 mm³
354.55 mm³
Compare diamonds
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Popular comparisons:
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- 7.12ct Cushion (10.76x10.31x6.71) vs. 6.24ct Radiant (11x10.1x6.19)
- 7.12ct Cushion (10.76x10.31x6.71) vs. 7.01ct Pear (16.72x10.84x6.5)
- 7.12ct Cushion (10.76x10.31x6.71) vs. 7.01ct Radiant (11x10.1x6.19)
- 7.12ct Cushion (10.76x10.31x6.71) vs. 7.01ct Radiant (12.04x10.6x6.25)
- 7.2ct Cushion (13.95x9.33x6.41) vs. 6.5ct Cushion (13.01x9.21x5.98)
- 7.03ct Cushion (11.97x10.1x6.73) vs. 4.38ct Oval (13.25x9.2x5.8)
- 7.2ct Cushion (13.01x9.87x6.4) vs. 8.05ct Radiant (13.39x9.68x6.63)
- 7.08ct Cushion (10.42x10.39x7.08) vs. 1ct Round (6.3x6.38x4.02)
Depth percentage for 7.12 carat Cushion (10.76×10.31×6.71mm)
Depth percentage of Cushion cut is the ratio of the total depth (measured from table to culet)
to its width. The total depth percentage of this diamond
is 65.1%, which is OK.
(Recommended depth percentage for Cushions is between 59% and
70%)
Depth percentage for cushions is calculated with the following formula:
Depth percentage for cushions is calculated with the following formula:
Depth % = (total depth ÷ width) × 100
7.12 carat
Cushion
(10.76×10.31×6.71mm) depth %:
Total depth: 6.71 mm
Width = 10.31 mm
Width = 10.31 mm
Depth % = (6.71 ÷ 10.31 ) × 100 = 65.1%
Depth percentage for 6.24 carat Radiant (12.04×10.6×6.25mm)
Depth percentage of Radiant cut is the ratio of the total depth (measured from table to culet)
to its width. The total depth percentage of this diamond
is 59%, which is OK.
(Recommended depth percentage for Radiants is between 59% and
70%)
Depth percentage for radiants is calculated with the following formula:
Depth percentage for radiants is calculated with the following formula:
Depth % = (total depth ÷ width) × 100
6.24 carat
Radiant
(12.04×10.6×6.25mm) depth %:
Total depth: 6.25 mm
Width = 10.6 mm
Width = 10.6 mm
Depth % = (6.25 ÷ 10.6 ) × 100 = 59%
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 7.12 carat Cushion (10.76×10.31×6.71mm)
The face-up size of this 7.12 carat Cushion
(10.76×10.31×6.71mm) is slightly out of normal range for
7.12ct diamonds of this shape. Compared to 7.12
carat Cushion reference diamond,
this diamond appears a bit too small when viewed from the top, which means it's
probably a borderline chubby.
A chubby is a diamond with hidden extra weight that looks smaller than it should when viewed from the top. Hidden weight is typically a result of a poor cut usually linked to oversized girdle, deeper pavilion, and/or steeper crown.
In order to maximize profits, diamond cutters tend to retain as much weight from the rough as possible. This practice, however, can have detrimental effects on the stone's face-up size and its optical qualities. Poorly proportioned stones look duller and sparkle less than well cut stones. Chubby stones also look smaller.
A chubby is a diamond with hidden extra weight that looks smaller than it should when viewed from the top. Hidden weight is typically a result of a poor cut usually linked to oversized girdle, deeper pavilion, and/or steeper crown.
In order to maximize profits, diamond cutters tend to retain as much weight from the rough as possible. This practice, however, can have detrimental effects on the stone's face-up size and its optical qualities. Poorly proportioned stones look duller and sparkle less than well cut stones. Chubby stones also look smaller.
The bottom line:
One should never sacrifice beauty for weight.
You probably don't want to pay for extra weight that doesn't add anything to the beauty.
You want a stone that looks its weight. Sizewise, this 7.12ct Cushion looks like a well cut 5.91ct Cushion.
7.12 carat Cushion reference diamond
Since there are no specific ideal proportions defined for Cushion cuts,
an estimation formula is used to calculate the Cushion reference diamond.
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Note: Cushion diamonds with face-up area of within 9% lower
and 12% higher than reference Cushion diamond area
are considered to be of adequate face-up size.
* Estimated Face-up area: Face-up area of Cushion cuts
is only an estimation (±5%). Due to uniqueness of each stone,
it's impossible to accurately calculate face-up area given only a diamond's measurements.
Face-up size evaluation for 6.24 carat Radiant (12.04×10.6×6.25mm)
The face-up size of this 6.24 carat Radiant
(12.04×10.6×6.25mm) is slightly out of normal range for
6.24ct diamonds of this shape. Compared to 6.24
carat Radiant reference diamond, this diamond seems a bit too large
when viewed from the top. This could be indicative of a spread cut, which is not a good sign.
A spread cut is a diamond that is cut to maximize spread. In this case, it would look larger than a well cut 6.24 carat Radiant when viewed from the top, however, this is usually not a good thing. Spread cuts are typically too shallow, which allows light to leak out of the stone instead of being properly returned back to the viewer's eye.
Spread cuts can look lifeless and flat, and can sometimes exhibit a fish-eye effect. They may also come with an extremely thin girdle which can easily chip.
A spread cut is a diamond that is cut to maximize spread. In this case, it would look larger than a well cut 6.24 carat Radiant when viewed from the top, however, this is usually not a good thing. Spread cuts are typically too shallow, which allows light to leak out of the stone instead of being properly returned back to the viewer's eye.
Spread cuts can look lifeless and flat, and can sometimes exhibit a fish-eye effect. They may also come with an extremely thin girdle which can easily chip.
The bottom line:
This diamond could be a spread cut. Caution is advised, since spread cuts
usually lack the sparkle and perfection that is expected of a beautiful diamond.
6.24 carat Radiant reference diamond
Since there are no specific ideal proportions defined for Radiant cuts,
an estimation formula is used to calculate the Radiant reference diamond.
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Note: Radiant diamonds with face-up area of within 9% lower
and 12% higher than reference Radiant diamond area
are considered to be of adequate face-up size.
* Estimated Face-up area: Face-up area of Radiant 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.
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 7.12ct Cushion (10.76×10.31×6.71mm):
Top surface area = 99.84 mm²
Weight = 7.12ct
Face-up area per carat = 99.84 ÷ 7.12 = 14.02mm²/ct
Weight = 7.12ct
Face-up area per carat = 99.84 ÷ 7.12 = 14.02mm²/ct
Face-up area per carat
for 6.24ct Radiant (12.04×10.6×6.25mm):
Top surface area = 121.24 mm²
Weight = 6.24ct
Face-up area per carat = 121.24 ÷ 6.24 = 19.43mm²/ct
Weight = 6.24ct
Face-up area per carat = 121.24 ÷ 6.24 = 19.43mm²/ct
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