Gold value, making charges, wastage, GST bill, reverse calculations — sab ek jagah
24K = 99.9% pure (investment bars). 22K = 91.6% (Indian jewellery standard). 20K = 83.3%. 18K = 75% (lightweight/diamond jewellery). 14K = 58.3%.
GST on Gold: 3% on gold value + making charges. GST on Making: 5% on making charges (some jewellers combine at 3%). Hallmark: Always buy BIS Hallmarked gold — it guarantees purity.