Diamond Carat Weight / Diameter mm. size Table :

Please note the chart's below are a guide only, every diamond is unique, diamonds are measured by carat weight and not physical size.

Lewelry Days - Round Diamond Round Cut
Milimeters Carat weight Points / Cents
1.0 0.005 0.5
1.3 0.01 1
1.5 0.015 1.5
1.7 0.02 2
1.8 0.025 2.5
2.0 0.03 3
2.1 0.035 3.5
2.2 0.04 4
2.4 0.05 5
2.5 0.06 6
2.7 0.07 7
2.8 0.08 8
2.9 0.09 9
3.0 0.10 10
3.1 0.11 11
3.2 0.12 12
3.3 0.14 14
3.4 0.15 15
3.5 0.16 16
3.6 0.17 17
3.7 0.18 18
3.8 0.20 20
3.9 0.22 22
4.0 0.25 25
4.2 0.30 30
4.4 0.33 33
4.5 0.35 35
4.6 0.38 38
4.8 0.40 40
5.0 0.50 50
5.4 0.60 60
5.5 0.63 63
5.6 0.65 65
6.0 0.75 75
6.4 0.95 95
6.6 1.00 100
6.8 1.17 117
7.0 1.25 125
7.2 1.33 133
7.5 1.55 155
7.8 1.75 175
8.0 2.00 200
8.4 2.15 215
8.6 2.25 225
9.0 2.75 275
9.4 3.00 300
9.6 3.15 315
9.8 3.35 335
10.0 3.50 350
10.2 3.75 375
10.4 4.00 400
10.6 4.25 425
10.8 4.5 450
11.0 4.75 475
11.2 5.00 500
12.0 6.50 650

 

 

Diamond Grading Guide:

 

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