"Indian standard on gold hallmarking has been revised and has been made effective for implementation with effect from January 1, 2017," BIS said in a release issued here.
The hallmarked gold jewellery will now be available in three grades of 14 carat, 18 carat and 22 carat.
The caratage will also be marked on jewellery in addition to fineness for convenience of consumers, that is for 22 carat jewellery 22K will be marked in addition to 916 (22K916), for 18 carat jewellery 18K will be marked in addition to 750 (18K750) and for 14 carat jewellery, 14K will be marked in addition to 585 (14K585), it added.