Brief Details about Diamond Size Chart

Posted on May 26, 2019 by admin
Last updated on October 21, 2026 at 6:52 am

Summary

Diamond Size Chart and its brief details

While purchasing the diamonds, all of us think about their size. Well, diamonds come in different sizes. Here are the brief details regarding the sizes. Check out the detailed Diamond Size Chart.

diamond size chart by rrp diamond

Also Read: How are diamonds Made?

Round Diamond Size Chart

If you are thinking about purchasing one carat round Diamond then the question about the looks of diamond on your hand must have heated your mind. In order to help you in getting details about the size of Diamonds that are round in shape, we have given the round Diamond size chart below. We have given the size of the Diamond into millimeters so that it will be easy for you to get an exact idea.

Round MM Size	Round Carat Weight
0.8 mm.	0.0025 ct.
1 mm.	0.005 ct.
1.12 mm.	0.0067 ct.
1.15 mm.	0.0075 ct.
1.25 mm.	0.01 ct.
1.3 mm.	0.01 ct.
1.5 mm.	0.015 ct.
1.75 mm.	0.02 ct.
1.8 mm.	0.025 ct.
2 mm.	0.03 ct.
2.25 mm.	0.04 ct.
2.5 mm.	0.06 ct.
2.75 mm.	0.08 ct.
3 mm.	0.11 ct.
3.25 mm.	0.14 ct.
3.5 mm.	0.17 ct.
3.75 mm.	0.21 ct.
4 mm.	0.25 ct.
4.25 mm.	0.28 ct.
4.5 mm.	0.36 ct.
4.75 mm.	0.44 ct.
5.0 mm.	0.50 ct.
5.25 mm.	0.56 ct.
5.5 mm.	0.66 ct.
5.75 mm.	0.75 ct.
6 mm.	0.84 ct.
6.25 mm.	0.93 ct.
6.5 mm.	1.00 ct.
6.8 mm.	1.25 ct.
7 mm.	1.30 ct.
7.3 mm.	1.50 ct.
7.5 mm.	1.67 ct.
7.75 mm.	1.75 ct.
8 mm.	2.00 ct.
8.25 mm.	2.11 ct.
8.5 mm.	2.43 ct.
8.7 mm.	2.50 ct.
9 mm.	2.75 ct.
9.1 mm.	3.00 ct.
9.5 mm.	3.35 ct.
9.75 mm.	3.61 ct.
10 mm.	3.87 ct.
10.25 mm.	4.16 ct.
10.5 mm.	4.41 ct.
10.75 mm.	4.57 ct.
11 mm.	4.91 ct.
11.25 mm.	5.49 ct.
11.5 mm.	5.85 ct.
12 mm.	6.84 ct.
12.25 mm.	7.26 ct.
12.5 mm.	7.36 ct.
12.75 mm.	7.52 ct.
13 mm.	8.51 ct.
13.5 mm.	9.53 ct.
14 mm.	10.49 ct.
15 mm.	12.89 ct.
16 mm.	16.06 ct.

Princess-Cut Diamond Size Chart (MM)

Ladies love diamonds. And when it comes to Princess Cut Diamond then these are love. If you are going to purchase the princess cut diamond then you must consider the below-given Diamond size chart once. Here also we have given the size of the Diamond into millimeters along with their Karat weight.

Princess MM Size	Princess Carat Weight
1.5 mm.	0.015 ct.
1.75 mm.	0.03 ct.
2 mm.	0.06 ct.
2.25 mm.	0.08 ct.
2.5 mm.	0.10 ct.
2.75 mm.	0.13 ct.
3 mm.	0.18 ct.
3.25 mm.	0.26 ct.
3.5 mm.	0.29 ct.
3.75 mm.	0.31 ct.
4 mm.	0.39 ct.
4.25 mm.	0.44 ct.
4.5 mm.	0.50 ct.
4.75 mm.	0.64 ct.
5 mm.	0.75 ct.
5.25 mm.	0.90 ct.
5.5 mm.	1.00 ct.
5.75 mm.	1.11 ct.
6 mm.	1.25 ct.
6.25 mm.	1.39 ct.
6.5 mm.	1.50 ct.
6.75 mm.	1.75 ct.
7 mm.	2.00 ct.
7.25 mm.	2.01 ct.
7.5 mm.	2.50 ct.
7.75 mm.	2.74 ct.
8 mm.	3.00 ct.
8.25 mm.	3.24 ct.
8.5 mm.	3.67 ct.
8.75 mm.	4.10 ct.
9 mm.	4.12 ct.
9.5 mm.	5.09 ct.
9.75 mm.	5.36 ct.
10 mm.	5.62 ct.
10.25 mm.	5.76 ct.
10.5 mm.	5.99 ct.
11 mm.	7.44 ct.
11.5 mm.	9.44 ct.
12 mm.	9.52 ct.

Cushion Diamond Size Chart

One of the hardest shapes of diamond that one can predict is cushioned cut diamonds. 20 Diamond also waves into ML measurements. In the below 6 and we have given the question Diamond size chart that you can consider before purchasing it.

Cushion MM Size	Cushion Carat Weight
4.2 mm.	0.40 ct.
4.9 mm.	0.50 ct.
5.25 mm.	0.75 ct.
5.5 mm.	1.00 ct.
6 mm.	1.25 ct.
6.5 mm.	1.50 ct.
7 mm.	2.00 ct.
7.5 mm.	2.50 ct.
8 mm.	3.00 ct.
8.5 mm.	3.50 ct.
9 mm.	4.12 ct.
9.5 mm.	5.09 ct.
10 mm.	5.62 ct.
11 mm.	7.44 ct.
12 mm.	9.52 ct.
13 mm.	12.66 ct.

Oval Diamond Size Chart

The length and width ratios of oval cut diamonds depend upon their II design. In the below section we have given the oval Diamond size chart that will help you in getting details about the size of the diamonds.

Oval MM Size	Oval Carat Weight
4.5×3.5 mm.	0.21 ct.
5×3 mm.	0.21 ct.
5.5×3.5 mm.	0.33 ct.
5×4 mm.	0.35 ct.
6×4 mm.	0.50 ct.
6×5 mm.	0.61 ct.
6.5×4.5 mm.	0.65 ct.
7×5 mm.	0.75 ct.
7.7×5.7 mm.	1.00 ct.
8×6 mm.	1.25 ct.
9×6 mm.	1.41 ct.
8.5×6.5 mm.	1.50 ct.
9×7 mm.	2.00 ct.
10×8 mm.	2.50 ct.
10.5×8.5 mm.	2.88 ct.
12×8 mm.	3.00 ct.
11×9 mm.	3.85 ct.
12×10 mm.	5.05 ct.
14×10 mm.	5.81 ct.
13×11 mm.	6.05 ct.
14×12 mm.	8.21 ct.
15×12 mm.	8.76 ct.
16×12 mm.	9.32 ct.
16×14 mm.	11.88 ct.
18×13 mm.	12.86 ct.
20×15 mm.	14.96 ct.

Emerald Diamond Size Chart

The Diamond size chart of Emerald Diamond contains several common ratios and different convergence between millimeter measure wind and weight in carats. You can take out the emerald Diamond size chart yourself.

Emerald MM Size	Emerald Carat Weight
3×2 mm.	0.10 ct.
3.5×2 mm.	0.12 ct.
4×2 mm.	0.15 ct.
4×3 mm.	0.20 ct.
5×3 mm.	0.29 ct.
5.5×3.5 mm.	0.46 ct.
6×4 mm.	0.50 ct.
6.5×4.5 mm.	0.75 ct.
6.7×4.5 mm.	0.88 ct.
7×5 mm.	1.00 ct.
7.3×5.3 mm.	1.25 ct.
7.5×5.5 mm.	1.50 ct.
8×6 mm.	1.75 ct.
8.5×6.5 mm.	2.00 ct.
9×7 mm.	2.50 ct.
10×7.5 mm.	3.00 ct.
9.5×7.5 mm.	3.21 ct.
10×8 mm.	3.79 ct.
11×9 mm.	5.21 ct.
12×8 mm.	5.34 ct.
12×10 mm.	6.00 ct.
14×8 mm.	6.25 ct.
13×9 mm.	6.38 ct.
14×10 mm.	8.48 ct.
13×11 mm.	9.13 ct.
14×12 mm.	11.26 ct.
16×12 mm.	14.22 ct.

Heart Diamond Size Chart

One of the ideal diamond that is popular among couples is the heart-shaped diamond. The Length and width ratio of this diamond is 1:1. In the below section we have given the heart-shaped diamond size chart. You are suggested to check out.

Heart MM Size	Heart Carat Weight
3.5 mm.	0.18 ct.
4 mm.	0.25 ct.
4.25 mm.	0.28 ct.
4.5 mm.	0.34 ct.
4.75 mm.	0.38 ct.
5 mm.	0.50 ct.
5.5 mm.	0.61 ct.
6 mm.	0.75 ct.
6.25 mm.	0.83 ct.
6.5 mm.	1.00 ct.
7 mm.	1.25 ct.
7.5 mm.	1.50 ct.
8 mm.	2.00 ct.
8.5 mm.	2.50 ct.
9 mm.	3.00 ct.
10 mm.	3.50 ct.
11 mm.	4.41 ct.
12 mm.	5.66 ct.
13 mm.	7.88 ct.
14 mm.	9.38 ct.
15 mm.	10.79 ct.
16 mm.	13.27 ct.
18 mm.	15.33 ct.

Pear Diamond Size Chart

Willing to purchase a pear Diamond then, you are suggested to check the cut proportions and carat weights of it. The below-given Diamond size chart will help you in predicting the look of the diamond when it will be on your finger.

Pear MM Size	Pear Carat Weight
3×2 mm.	0.13 ct.
4×2.5 mm.	0.18 ct.
4×3 mm.	0.21 ct.
5×3 mm.	0.25 ct.
5×4 mm.	0.35 ct.
6×4 mm.	0.50 ct.
6.5×4.5 mm.	0.60 ct.
7×5 mm.	0.75 ct.
7.5×5.5 mm.	0.85 ct.
7.7×5.7 mm.	1.00 ct.
8×6 mm.	1.25 ct.
8.5×6.5 mm.	1.50 ct.
10×6 mm.	1.71 ct.
8.7×6.7 mm.	1.80 ct.
9×7 mm.	2.00 ct.
10×8 mm.	2.50 ct.
11×7.50 mm.	2.61 ct.
13×8 mm.	2.98 ct.
11×8 mm.	3.00 ct.
12×8 mm.	3.00 ct.
12×7 mm.	3.12 ct.
12×9 mm.	3.44 ct.
14×8 mm.	3.47 ct.
13×9 mm.	4.11 ct.
14×9 mm.	4.25 ct.
15×9 mm.	5.06 ct.
14×10 mm.	5.41 ct.
13×11 mm.	5.65 ct.
15×10 mm.	5.75 ct.
16×9 mm.	5.86 ct.
16×10 mm.	6.27 ct.
17×10 mm.	6.46 ct.
15×11 mm.	7.36 ct.
18×11 mm.	8.14 ct.
16×12 mm.	8.99 ct.
18×12 mm.	9.35 ct.
18×13 mm.	10.21 ct.

Marquise Diamond Size Chart

Marquise diamonds are also very famous. If you are willing to buy Marquise diamonds then you are suggested to check the Diamond size chart given in the below section.

Marquise MM Size	Marquise Carat Weight
3×1.5 mm.	0.025 ct.
3.5×1.75 mm.	0.065 ct.
3.5×2 mm.	0.07 ct.
4×2 mm.	0.10 ct.
3.75×1.75 mm.	0.11 ct.
4.25×2.25 mm.	0.12 ct.
5×2.5 mm.	0.14 ct.
5.5×2.75 mm.	0.16 ct.
5.5×3 mm.	0.18 ct.
5×3 mm.	0.20 ct.
6.5×3 mm.	0.23 ct.
6×3 mm.	0.25 ct.
7×3 mm.	0.30 ct.
7.5×3.5 mm.	0.33 ct.
7×4 mm.	0.34 ct.
8×4 mm.	0.50 ct.
8.75×4.25 mm.	0.70 ct.
9×4.5 mm.	0.75 ct.
9.5×4.7 mm.	0.85 ct.
10×5 mm.	1.00 ct.
11×5.5 mm.	1.25 ct.
11.5×6 mm.	1.33 ct.
12×6 mm.	1.50 ct.
13×6.5 mm.	2.00 ct.
14×7 mm.	2.50 ct.
15×7 mm.	3.00 ct.
14×8 mm.	3.00 ct.
15×7.5 mm.	3.25 ct.
15×8 mm.	3.44 ct.
16×8 mm.	3.86 ct.
16.5×8.25 mm.	4.00 ct.
17×8.5 mm.	4.88 ct.
17.5×10 mm.	5.50 ct.
20×8 mm.	7.08 ct.
20×10 mm.	7.94 ct.
20×11 mm.	9.50 ct.

Asscher Diamond Size Chart

If you are willing to purchase an Asscher Diamond then here is the diamond size chart you must consider once.

Asscher MM Size	Asscher Carat Weight
4 mm.	0.39 ct.
4.5 mm.	0.50 ct.
5 mm.	0.75 ct.
5.5 mm.	1.00 ct.
6 mm.	1.25 ct.
6.5 mm.	1.50 ct.
7 mm.	2.00 ct.
7.5 mm.	2.50 ct.
8 mm.	3.00 ct.
8.5 mm.	3.50 ct.
9 mm.	4.12 ct.
9.5 mm.	5.09 ct.
10 mm.	5.62 ct.
11 mm.	7.44 ct.
12 mm.	9.52 ct.
13 mm.	12.66 ct.

Radiant Diamond Size Chart

The radiant diamond is mostly rectangular in shape. In order to purchase the ideal Radiant cut diamond, you are suggested to check out the weight and size measurements from the below-given table.

Radiant MM Size	Radiant Carat Weight
5×3 mm.	0.31 ct.
4.5×3.5 mm.	0.34 ct.
6×3 mm.	0.41 ct.
6×4 mm.	0.50 ct.
6.5×4.5 mm.	0.75 ct.
7×5 mm.	1.00 ct.
7.3×5.5 mm.	1.25 ct.
7.5×5.8 mm.	1.50 ct.
8×6 mm.	2.00 ct.
8.5×6.5 mm.	2.25 ct.
9×7 mm.	2.50 ct.
9.5×7.5 mm.	3.00 ct.
10×7 mm.	3.31 ct.
10×8 mm.	3.50 ct.
11×9 mm.	5.05 ct.
12×9 mm.	6.06 ct.
11.5×10 mm.	6.45 ct.
13×9 mm.	6.54 ct.
12×10 mm.	6.79 ct.
14×10 mm.	8.47 ct.
13×11 mm.	9.33 ct.
13.5×11.5 mm.	10.19 ct.
15×11 mm.	11.48 ct.
14×12 mm.	12.14 ct.
16×12 mm.	14.22 ct.