AMBAAGOLD
Journal
Quality

Why the 916 BIS hallmark matters

Understanding what hallmarking certifies, why it matters, and how to verify it on every piece.

January 18, 2026 3 min readBy Ambaa Quality Assurance
Why the 916 BIS hallmark matters

What 916 actually means

916 is the international standard for 22-karat gold — 91.6% pure gold alloyed with 8.4% of stronger metals to make the piece wearable. Anything sold as 22-karat in India must carry a BIS 916 hallmark by law.

The hallmark is your assurance that the piece has been independently assayed at a government-licensed centre.

Reading the four marks

A genuine BIS hallmark carries four elements: the BIS triangle logo, the purity number (916, 750 or 585), the six-digit HUID and the jeweller's identification mark. All four must be present and machine-engraved, never stamped.

You can verify any HUID instantly through the BIS Care app — match the design and weight on screen against the piece in hand.

Our commitment

Every single Ambaa Gold piece is hallmarked before it leaves the atelier — no exceptions, including custom and bridal orders. Hallmarking is a baseline, not a feature.