Gold hallmark identifier · Experimental
Understand marks on gold-coloured jewellery.
Numbers, letters and symbols can carry meaning. We record them and offer referenced interpretations.
Add 1–5 photos of one specimen
JPEG, PNG or WebP · up to 10 MB each · 30 MB per scan
Optional details you know first-hand
Tell us what you measured yourself, what someone told you, and what a report says — we keep these separate.
Privacy: photos are used only for your scan, location data is removed before upload, and nothing is used for training unless you opt in. Guest scans are deleted after 24 hours.
Features that may help
- Numbers (e.g. fineness claims)
- Maker marks
- Symbols
Common confusions
- Plating marks
- Worn or partial stamps
What a photo can't conclude
- Actual fineness
- Maker authenticity
Questions
What does a number like 750 mean?
It is commonly used to claim a fineness in parts per thousand. A stamp is a claim, not proof.