The
weight of a diamond is expressed in carats. There
are 5 carats in one gram. The carat weight is
divided into points, there are 100 points to
the carat. A quarter of a carat is called a 'grain'(0.25ct.)
The
bigger a diamond is the rarer and therefore dearer
it is, ie.: a 1 ct. diamond can be four/six times
more expensive than a similar quality stone of
half it's size.
Gemmological
laboratories use digital highly precise scales to
determine weight and give weight up to three
decimals points. Please
find below an approximate size expressed as a
diameter to:
|
0.25ct |
..................... |
4mm |
|
0.50ct |
..................... |
5mm |
|
1.00ct |
..................... |
6.5mm |
|
1.25ct |
..................... |
7.5mm |
|
1.50ct |
..................... |
8.5mm |
|
1.75ct |
..................... |
9mm |
|
2.00ct |
..................... |
10mm |
|
