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Carat and Ratti

Carat to Ratti Conversion


Abbreviated "ct." and spelled with a "c" is a measure of weight used for gemstones. One carat is equal to 1/5 of a gram (200 milligrams). Stones are measured to the nearest hundredth of a carat. A hundreth of a carat is also called a pointer.

Thus a .10 carat stone can be called either 10 pointers, or 1/10 of a carat. Small stones like .05, and .10ct are most often referred to by pointer designations.

Note that karat with a "K" is a measure of the purity of a gold alloy.

How to convert Carat to Ratti ?

1 Gram = 1000 Milligramms

200 Milligramms =1 Carat or = 100 Cents

180 Milligramms =1 Ratti Approx(Standard Stone Ratti)

So, to calculate Ratti from Carat weight,below is a simple method:

Carat Weight/ 0.90 = Ratti Weight.


5 Carat / 0.90 = 5.55 Ratti Approx.

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