Gold carat explained and which carat is pure in gold?different types of gold carat.

Gold carat explained and which carat is pure?different types of gold carat. ಹೇಗೆ ಚಿನ್ನದ ಮೆಸರ್ ಮಾಡೋದು?ಯಾಉದು ಪರಿಶುದ್ಧ ಚಿನ್ನ?

Gold carat explained simply,what all gold carat massurements in gold,