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Frequently Asked Questions

Carat Vs Karat

Diamond Size Chart

Want to know how a 1 carat diamond appears on your hand? Just check out the diamond size chart for the precise millimeter (mm) measurement of each diamond round shape. It'll give you an idea of its size!

Round Brilliant Diamonds Size Chart (MM)

MM Size Carat Weight
0.8 0.0025
1 0.005
1.10 0.0075
1.15 0.0067
1.25 0.01
1.3 0.01
1.5 0.015
1.75 0.02
1.8 0.025
2 0.03
2.25 0.04
2.5 0.06
2.75 0.08
3 0.11
3.25 0.14
3.5 0.17
3.75 0.21
4 0.25
4.25 0.28
4.5 0.36
4.75 0.44
5 0.46
5.25 0.56
5.5 0.66
5.75 0.76
6 0.84
6.25 0.93
6.5 1.03
6.75 1.24

Radiant Cut

MM Size Carat Weight
4.5 x 3.5 0.34
5 x 3 0.31
6 x 3 0.41
6 x 4 .60
6.5 x 4.5 0.83
7 x 5 1.14
7.25 x 5.25 1.24
7.5 x 5.5 1.47
8 x 6 1.74
8.5 x 6.5 2.25
9 x 7 2.62
9.5 x 7.5 3.18
10 x 7 3.31

MM Size Carat Weight
10 x 8 3.49
11 x 9 5.05
11.5 x 10 6.45
12 x 9 6.06
12 x 10 6.79
13 x 9 6.54
13 x 11 9.33
13.5 x 11.5 10.19
14 x 10 8.47
14 x 12 12.14
15 x 11 11.48
16 x 12 14.22

Oval Cut Diamonds Size Chart (MM)

Carat Weight Min Carat Weight Max Carat Weight Length (approx. mm) Width (approx. mm)
1 0.95 1.05 8.03 5.73
1 1/2 1.46 1.58 8.95 6.45

 Princess Cut Diamonds Size Chart (MM)

Carat Weight Min Carat Weight Max Carat Weight Length (approx. mm) Width (approx. mm)
1/2 0.48 0.53 4.20 4.20
5/9 0.53 0.58 4.42 4.42
5/8 0.59 0.66 4.60 4.60
3/4 0.71 0.79 4.92 4.92
7/8 0.83 0.92 5.17 5.17
1 0.95 1.05 5.41 5.41
1 1/8 1.07 1.18 6.02 6.02
2 2.45 2.63 7.02 7.02
2 1/2 2.95 3.15 7.35 7.35
3 2.95 3.15 7.85 7.85

 

Cushion Cut Diamonds Size Chart (MM)

Carat Weight Min Carat Weight Max Carat Weight Length (approx. mm) Width (approx. mm)
1/2 0.48 0.53 4.42 4.42
5/8 0.59 0.66 4.77 4.77
3/4 0.71 0.79 5.07 5.07
7/8 0.83 0.92 5.34 5.34
1 0.95 1.05 5.58 5.58
2 1.95 2.10 7.25 7.25
2 1/2 2.45 2.63 7.80 7.80
3 2.95 3.15 8.35 8.35

 

Emerald Cut Diamonds Size Chart (MM)

Carat Weight Min Carat Weight Max Carat Weight Length (approx. mm) Width (approx. mm)
1 0.95 1.05 6.70 4.85
2 1.95 2.10 8.40 6.10


Heart Cut Stones Size Chart (MM)


Carat and Diamond Size
Is carat the size of a diamond?

Carat is actually a measure of a diamond's weight, not its precise size. Generally, a higher carat weight indicates a larger diamond, but it is recommended to verify the gem's exact measurements.

It is a common misconception that a higher carat weight directly corresponds to a larger diamond size. In reality, the carat measurement refers to the weight of a diamond, not its physical dimensions. Different diamond shapes showcase carat weight in varying ways, with some shapes appearing larger for the same carat weight. For instance, a 1.5 carat emerald cut diamond may appear longer and larger than a round brilliant diamond of the same carat weight due to the unique cut of each shape.
While there are general expectations for the correlation between diamond carat and size, it is important to consider each diamond individually. Our diamond size chart can provide further insight into this relationship. Always review a specific diamond's measurements to understand its exact profile and dimensions.

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