Jewellery Guides

What is BIS Hallmark?

BIS (Bureau of Indian Standards) Hallmarking is a system that certifies the purity of gold jewellery. It is the only way to ensure that you are buying genuine gold.

Components of a Hallmark

A legitimate BIS Hallmark on gold jewellery consists of three marks:

1. BIS Logo: A triangular mark indicating that the purity is verified by a BIS licensed lab.
2. Purity Grade: Indicates the fineness of gold (e.g., 22K916, 18K750, 14K585).
3. HUID Code: A 6-digit alphanumeric code unique to each piece of jewellery, ensuring traceability.

Diamond Certification

While Hallmarking is for gold, diamond certification is provided by independent gemological laboratories. KALYAN uses certifications from:

• IGI (International Gemological Institute)
• GIA (Gemological Institute of America)
• SGL (Solitaire Gemological Laboratories)