When we are selling Gold, Diamond or Silver Jewellery to the end consumer (Customer) like a Gold Chain weighing10gm at a total value of Rs. 30,000/- (gold value is Rs. 28000/- and making charges on that gold chain is Rs 2000/-), can we charge GST @3% on the total value or @3% on the gold value and @5% on making charges

GST is payable at the rate of 3% of the total transaction value of jewellery, whether the making charge is shown separately or not.

( FAQ 7: GEMS AND JEWELLERY)