While the Indian government has made HUID (Hallmark Unique Identification) mandatory for gold jewelry, the rules around silver are less strictly enforced at the consumer level. This creates a massive loophole for fraudulent jewelers to sell under-karated silver. Here is how to protect yourself using the voluntary BIS Silver Hallmarking system.
The Three Marks of Authentic Silver
A true BIS hallmark on silver must have three distinct marks clearly stamped or laser-engraved on the metal:
- The BIS Logo: A small triangle with a dot inside. This confirms the piece was tested at a certified Assaying and Hallmarking Centre (AHC).
- The Purity Grade: A number indicating the fineness of the silver (explained below).
- The AHC / Jeweler Identification Mark: A code that traces the piece back to the specific center that tested it and the jeweler who sold it.
Understanding the Silver Purity Grades
Unlike gold (which uses Karats like 22K or 18K), silver is measured in "fineness" parts per thousand. The BIS recognizes six standard grades of silver purity:
- 9999, 999, and 995: These are Fine Silver grades (99.9% pure). Used primarily for coins, bars, and investment bullion.
- 925: Sterling Silver (92.5% pure). The global standard for high-quality jewelry.
- 900: 90% pure. Often used for heavy Indian anklets and robust utensils.
- 835 and 800: Lower purity grades (83.5% and 80%) used for everyday utilitarian items to make them extremely hard and resistant to bending.
The "German Silver" Scam
Be incredibly wary of vendors selling "German Silver" or "Nickel Silver" items. German Silver contains exactly zero percent silver. It is an alloy of copper, zinc, and nickel that merely looks like silver. Always look for the BIS 925 or 999 stamp. If a piece does not have a hallmark, assume it is of inferior purity and demand a discount, or simply walk away.