20.00 carat      = 4,000 milligram = 4.00 gram
15.00 carat      = 3,000 milligram = 3.00 gram
10.00 carat      = 2,000 milligram = 2.00 gram
8.00 carat        = 1,600 milligram = 1.60 gram
7.00 carat        = 1,400 milligram = 1.40 gram
6.00 carat        = 1,200 milligram = 1.20 gram
5.00 carat        = 1,000 milligram = 1.00 gram
4.00 carat        =    800 milligram = 0.80 gram
3.00 carat=    600 milligram = 0.60 gram
2.50 carat=    500 milligram = 0.50 gram
2.25 carat=    450 milligram = 0.45 gram
2.00 carat=    400 milligram = 0.40 gram
1.75 carat=    350 milligram = 0.35 gram
1.50 carat=    300 milligram = 0.30 gram
1.25 carat=    250 milligram = 0.25 gram
1.00 carat       =    200 milligram = 0.20 gram
0.85 carat=    170 milligram = 0.17 gram
0.75 carat=    150 milligram = 0.15 gram
0.65 carat=    130 milligram = 0.13 gram
0.50 carat=    100 milligram = 0.10 gram
0.40 carat=      80 milligram = 0.08 gram
0.33 carat=      66 milligram = 0.06 gram
0.25 carat=      50 milligram = 0.05 gram
0.20 carat=      40 milligram = 0.04 gram
0.15 carat=      30 milligram = 0.03 gram
0.10 carat=      20 milligram = 0.02 gram
0.07 carat       =      14 milligram = 0.014 gram
0.05 carat       =      10 milligram = 0.010 gram
0.03 carat       =        6 milligram = 0.006 gram
Why the carat weight is most impacting the price?
The more the diamond weighs, the rarer and exponential more expensive it is!

The price of a diamond is most significantly impacted by carat weight. 
No surprise that the demand of larger diamonds drive prices because of their rarity. 

Compare diamond Carat weight to Carat size - Carat weight is expressed in milligrams, grams - Find converter here. 

Convert diamond weight according to carat size - How big are carat diamonds in weight? 

Carat is the unit of mass to measure the weight of precious stones - You buy diamonds by carat weight, not by size.  
Diamonds of the same weight can have different sizes, measurements and different shapes.
Find out which shape looks largest.

Compare Specific Weight of diamonds to other Precious Stones
0.03 carat weight = 6 milligram = 0.006 gram
0.05 carat weight = 10 milligram = 0.010 gram
0.07 carat weight = 14 milligram = 0.014 gram
2.25 carat weight = 450 milligram = 0.45 gram
8 carat =1,600milligram = 1.60 gram
20 carat = 4,000 milligram = 4 gram
15 carat = 3,000 milligram = 3 gram
10 carat diamond weight = 2,000 milligram = 2 gram
6 carat = 1,200 milligram = 1.20 gram
0.10 carat weight = 20 milligram = 0.02 gram
0.15 carat weight = 30 milligram = 0.03 gram
0.20 carat weight = 40 milligram = 0.04 gram
0.25 carat weight = 50 milligram = 0.05 gram
0.33 carat weight = 66 milligram = 0.06 gram
0.40 carat weight = 80 milligram = 0.08 gram
Diamond carat weight 0.50 carat = 100 milligram = 0.10 gram
0.65 carat weight =130 milligram = 0.13 gram
0.75 carat weight =150 milligram = 0.15 gram
0.85 carat weight = 170 milligram = 0.17 gram
Diamond carat weight of 1 carat = 200 milligram = 0.20 gram
1.25 carat weight = 250 milligram = 0.25 gram
1.50 carat weight = 300 milligram = 0.30 gram
1.75 carat weight = 350 milligram = 0.35 gram
Diamond carat weight 2 carat = 400 milligram = 0.40 gram
2.50 carat weight = 500 milligram = 0.50 gram
3 carat weight = 600 milligram = 0.60 gram
4 carat = 800 milligram = 0.80 gram
5 carat = 1,000 milligram = 1 gram
7carat = 1,400 milligram = 1.40 gram
Find out how heavy your diamond is in weight
Diamond Weight in grams, milligrams and points. Compare weight 
in carats to size in mm
0.01 carat       =        2 milligram = 0.002 gram
weight 0.01 carat = 2 milligram = 0.002 gram
Convert weight in Size for different actual shapes:

Round brilliant carat sizes

Princess carat sizes  

Emerald carat sizes

Pear carat sizes  

Oval carat sizes 

Heart carat sizes

Trillion - trilliant carat sizes 

Marquise carat sizes 

Radiant carat sizes

Asscher carat sizes 

Cushion carat sizes


Asscher diamond weight
weight of carat diamonds of different shapes = 200 milligram = 0.20 gram view all
Princess diamond weight
Emerald diamond weight
pear diamond weight
oval diamond weight
Heart diamond weight
Marquise diamond weight
Radiant diamond weight
Cushion diamond weight
Each diamond has its own weight. 
Each diamond will differ from the standard weight!
diamond weight versus carat sizes
 Email     Tel: +32 3 233 29 90 
Antwerp World Diamond Centre, Diamond Exchange, Hoveniersstraat 2, Antwerp / Belgium / Europe
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This page was last updated on: September 7, 2018
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