Carat /
Fineness Purity
Used for describing purity
of gold alloy
| Carat |
|
Fineness |
| 24
carat |
= |
0.999 |
| 22
carat |
= |
0.916 |
| 18
carat |
= |
0.750 |
| 14
carat |
= |
0.583 |
| 9
carat |
= |
0.375 |
|
Carat Weight
Used in weighing precious stones and
semi-precious gemstones
| 1 carat |
= |
0.20 grams |
| 1 gram |
= |
5 carats |
| 1 carat |
= |
0.007 ounce avoirdupois |
| 1 carat |
= |
3.086 grains troy |
The carat is further divided into points for simple measurement.
| 1 carat |
= |
100 points |
| ½ carat |
= |
50 points |
| ¼ carat |
= |
25 points |
|
|
Carat wise weight
conversion ratios
Used to estimate the weight of a piece of jewellery, if made in
other carat then it is made in. (These are for rough estimate for
standard alloy. Weight may very in case of different alloy. Based on
our experience)
| 22 carat weight x
0.889 |
= |
18 carat weight |
| 22 carat weight x
0.779 |
= |
14 carat weight |
| 22 carat weight x
0.500 |
= |
9 carat weight |
| 18
carat weight x 1.125 |
= |
22
carat weight |
| 18
carat weight x 0.875 |
= |
14
carat weight |
| 18
carat weight x 0.689 |
= |
9
carat weight |
| 14
carat weight x 1.143 |
= |
22
carat weight |
| 14
carat weight x 1.143 |
= |
18
carat weight |
| 14
carat weight x 0.786 |
= |
9
carat weight |
| 9
carat weight x 2.000 |
= |
22
carat weight |
| 9
carat weight x 1.454 |
= |
18
carat weight |
| 9
carat weight x 1.273 |
= |
14
carat weight |
|
|
