The Digital Ownership Certificate for Jewellery.
Gemstone certificates, appraisal reports, hallmarking records and ownership history — linked in one permanent, cryptographically signed record.
Permanent
gemstone certificates linked and tamper-evident
Instant
independent verification for insurers and buyers
Every transfer
provenance chain survives gifts, inheritance, and resale
Why jewellery needs this
Jewellery Is Uniquely Vulnerable to Loss of Provenance.
Jewellery changes hands through gifts, inheritance, and resale — often without any documentation. Gemstone certificates get separated from the piece. Appraisals expire or are lost. Hallmarking records exist only in paper form. An Ownich Digital Ownership Certificate creates a permanent, tamper-evident record that links every document to the piece itself — and survives every transfer.
Gemstone certificates linked
GIA, IGI and grading reports permanently attached
Appraisal history preserved
Every valuation appended — never lost
Estate-ready documentation
Clear record for inheritance and dispute resolution
What it covers
What a Jewellery Certificate Records
Gemstone certificates
GIA, IGI, and other gemstone grading certificates are uploaded and permanently linked to the piece. They cannot be separated, substituted, or lost.
Appraisal records
Every appraisal — date, appraiser, valuation — is appended to the Ownership Passport. The complete appraisal history is available to insurers and buyers.
Hallmarking documentation
Hallmark details, assay office records, and metal purity documentation are recorded and cryptographically linked to the certificate.
Estate and inheritance
Jewellery passed through estates often has no documentation. An Ownich certificate creates a clear, verifiable record of what was owned, by whom, and when — preventing disputes.
Insurance protection
Insurers can verify the piece's identity, gemstone grades, and current valuation independently. Claims are faster and less likely to be disputed.
Anti-substitution
A cryptographically sealed record of the gemstone's grading report makes substitution immediately detectable. The certificate describes the specific stone, not just the setting.
Example records
Jewellery Certificates in Practice
Cartier
Love Bracelet
18ct Yellow Gold
Tiffany & Co.
Solitaire Ring
1.2ct GIA Certified
Van Cleef & Arpels
Alhambra Necklace
Vintage 20 Motif
How it works
From Registration to Permanent Record.
Register the piece
Enter the jewellery details — maker, metal, gemstone, hallmark. Takes under two minutes.
Link your documents
Upload gemstone certificates, appraisals, purchase receipts, and hallmarking records. Each is cryptographically sealed to the certificate.
Certificate issued
Your Digital Ownership Certificate is signed and the Ownership Passport is created. The provenance chain begins from this moment.
Transfer with full history
When the piece changes hands — sale, gift, or inheritance — the complete record transfers. The new owner receives everything.
Register Your Jewellery Today
Free to start. No brand approval needed. Register any piece you already own.