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Certifications
Trust, in writing
Every Aquison jewel leaves the maison with marks you can verify and papers you can keep.
Fine jewellery asks for trust, and trust should never have to be taken on faith. These are the certifications behind every piece we make — and how to verify each one yourself.
Our credentials
What certifies an Aquison piece
BIS Hallmark with HUID
Bureau of Indian Standards
Every gold piece is assayed and stamped with the BIS mark, its purity (585 / 750 / 916) and a unique six-character HUID traceable to that exact jewel.
Diamond certification
Independent gemmological laboratories
Solitaires and significant diamonds are accompanied by an independent laboratory certificate stating cut, colour, clarity and carat weight.
Kimberley Process compliance
KPCS supply chain
All diamonds are purchased through Kimberley-Process-compliant channels with written supplier warranties, keeping conflict stones out of our vitrines.
Gemstone provenance
House sourcing records
Coloured stones are bought directly from long-standing lapidary partners; origin and treatment disclosures are provided with each certificate card.
Registered jeweller
BIS registration
Aquison Jewels is a BIS-registered jeweller, audited for assaying and hallmarking practice — our registration is displayed at the maison.
Verify it yourself
Three ways to check any piece
01
Find the hallmark row inside the piece: BIS logo, purity mark and six-character HUID beside our house mark.
02
Enter the HUID in the official BIS Care app — it returns the jewel's purity, assay centre and registered jeweller.
03
Match your diamond certificate's number against the issuing laboratory's online registry.
Questions about a certificate?
Bring any piece — ours or not — to the maison and we will read its marks with you, without charge or obligation.