KNIGHTSBRIDGE DIAMOND  WEIGHT AND CARET ASSESSMENT GUIDE
For the convenience of our clients, partners and stakeholders we provide the below score cards to assist in identifying your diamond.

Please make the best estimation you can using the below information and provide this information to us by return email.:

  diamonds@knightsbridgemetals.com

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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

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
                                                                                       diamonds@knightsbridgemetals.com

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How heavy is your diamond in weight?
Diamond Weight in grams, milligrams and points. Compare weight in carats to size
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., and will differ from the standard weight!

Specific Gravity, Density, Hardness, Weight + Refraction of Precious stones, Minerals are the major factors in assessing weight and Caret assessment.
 
 

30.00 carat      = 6,000 milligram = 6.00 gram