How to check for purity of BIS hallmarked gold jewellery

[IndiaInsurance]

https://img.etimg.com/photo/91252430.cms (https://economictimes.indiatimes.com/wealth/web-stories/how-to-check-for-purity-of-bis-hallmarked-gold-jewellery/slideshow/91252942.cms)3 signs to check for purity of gold

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