Ratti, Carat & Gram Converter
Choose the units first. If either unit is ratti, confirm its weight with your seller.
Free to use · No sign-in needed · Private on your device
Convert a gemstone weight
Why do I need a ratti convention?
A carat always equals 0.2 gram, but ratti conventions vary. Ask the seller how many grams they mean by one ratti. This converter does not change the shop’s weights or prices and does not assess a stone’s quality.
Methods, privacy and limitations
Inputs stay on your device. A city is remembered only if you choose. Calendar and naming traditions vary; detailed methods and limits are published separately.
Read calculation methods