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Diamond Size Chart

ROUND DIAMOND SIZE CHART

 

Diamonds, they say, are a girl's best friend. But understanding carat weights and millimeter measurements can feel like decoding ancient hieroglyphics. Fear not, diamond dreamers! Today, we'll decode the mystery with a round diamond size chart. Ever wondered how a 1-carat compares to a 2-carat diamond? Or what size stone will give your finger that perfect pop of brilliance? We'll reveal the secret relationship between carat weight and millimeter diameter, empowering you to choose the ideal diamond for your style and budget. Grab your metaphorical magnifying glass and dive into the dazzling world of round diamond sizes!

 

Round MM Size

Round carat Weight

0.90 - 1.10 mm 0.005 ct
1.10 - 1.15 mm 0.006 ct
1.15 - 1.20 mm 0.007 ct
1.20 - 1.25 mm 0.008 ct
1.25 - 1.30 mm 0.009 ct
1.30 - 1.35 mm 0.01 ct
1.35 - 1.40 mm 0.011 ct
1.40 - 1.45 mm 0.012 ct
1.45 - 1.50 mm 0.013 ct
1.5 - 1.55 mm 0.014 ct
1.55 - 1.60 mm 0.016 ct
1.60 - 1.70 mm 0.018 ct
1.70 - 1.80 mm 0.021 ct
1.80 - 1.90 mm 0.025 ct
1.90 - 2.00 mm 0.029 ct
2.00 - 2.10 mm 0.035 ct
2.10 - 2.20 mm 0.039 ct
2.20 - 2.30 mm 0.044 ct
2.30 - 2.40 mm 0.052 ct
2.40 - 2.50 mm 0.058 ct
2.50 - 2.60 mm 0.069 ct
2.60 - 2.70 mm 0.074 ct
2.70 - 2.80 mm 0.078 ct
2.80 - 2.90 mm 0.086 ct
2.90 - 3.00 mm 0.095 ct

Round MM Size

Round Carat Weight

3.00 - 3.10 mm 0.108 ct
3.10 - 3.20 mm 0.116 ct
3.20 - 3.30 mm 0.13 ct
3.30 - 3.40 mm 0.145 ct
3.40 - 3.50 mm 0.155 ct
3.50 - 3.60 mm 0.165 ct
3.60 - 3.70 mm 0.19 ct
3.70 - 3.80 mm 0.20 ct
3.80 - 3.90 mm 0.21 - 0.22 ct
3.90 - 4.0 mm 0.23 - 0.24 ct
4.0 - 4.10 mm 0.25 - 0.26 ct
4.10 - 4.20 mm 0.26 - 0.27 ct
4.20 - 4.30 mm 0.27 - 0.28 ct
4.40 -4 .50 mm 0.30 - 0.36 ct
4.60 - 4.70 mm 0.40 - 0.45 ct
4.90 - 5.00 mm 0.46 - 0.48 ct
5.10 - 5.30 mm 0.50 - 0.57 ct
5.40 - 5.60 mm 0.60 - 0.67 ct
5.70 - 5.90 mm 0.70 - 0.77 ct
6.00 - 6.10 mm 0.80 - 0.85 ct
6.20 - 6.30 mm 0.90 - 0.95 ct
6.40 - 6.60 mm 1.00 - 1.10 ct
6.70 - 6.80 mm 1.22 - 1.26 ct
6.90 - 7.10 mm 1.28 - 1.30 ct
7.20 - 7.40 mm 1.50 - 1.55 ct

Round MM Size

Round Carat Weight

7.50 - 7.90 mm 1.67 - 1.80 ct
8.10 - 8.30 mm 2.00 - 2.10 ct
8.50 - 8.80 mm 2.40 - 2.60 ct
8.90 - 9.10 mm 2.70 - 2.80 ct
9.20 - 9.40 mm 3.00 - 3.10 ct
9.50 - 9.60 mm 3.30 - 3.40 ct
9.70 - 9.80 mm 3.50 - 3.70 ct
9.90 - 10.00 mm 3.80 - 3.90 ct
10.10 - 10.20 mm 4.00 - 4.10 ct
10.30 - 10.50 mm 3.30 - 4.40 ct
10.60 - 10.70 mm 4.50 - 4.60 ct
10.80 - 10.90 mm 4.70 - 4.80 ct
10.90 - 11.00 mm 4.90 - 4.99 ct
11.10 - 11.20 mm 5.00 - 5.20 ct
11.25 mm 5.49 ct
11.5 mm 5.85 ct
12 mm 6.84 ct
12.25 mm 7.267 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

FAQs

Round Diamond Size Chart