Ratti and carat are units of estimation that are used to check gemstones. There has been an advancement from ratti to carat. I ratti is proportional to .91 carat. Ratti, the seed of a plant was known to be the customary unit used to measure mass basically gemstones in India previously. It is never again used and has been superseded by the carat, the forefront unit of estimation contemplated standardized and used to check gemstones. The ratti can be changed over to a carat with the help of a ratti to carat converter which can be gotten to on the web.