Updated September 8, 2026 · By Bulawan
Quick home checks
| Check | How | What it suggests |
|---|---|---|
| Magnet | Hold a strong magnet near the piece | Gold is not magnetic; attraction means base metal |
| Hallmark | Look for 750/875/916/999 | Presence supports real gold; absence is inconclusive |
| Discoloration | Look at wear points and edges | Green/black base metal showing through means plating |
| Ceramic streak | Drag lightly on unglazed ceramic | Gold leaves a gold streak; black streak means fake |
Professional tests
- Acid test: a small scratch is tested with nitric acid of different strengths. Fast, inexpensive, slightly invasive.
- XRF (X-ray fluorescence): a machine reads the metal composition without damaging the item. Most accurate and widely used by gold buyers.
- Electronic testers: quick and non-destructive but can be fooled by thick plating.
Use a photo for a first opinion
Ask Bulawan lets you upload a photo of your jewelry and get AI-powered observations on stamps, color, and wear patterns. It is a helpful first step, not a substitute for a physical test.
Frequently asked questions
- Can gold be magnetic?
- Pure gold is not magnetic. If your item sticks to a magnet, it is likely plated or a different alloy. Clasps sometimes contain steel springs, so test the main body.
- Does real gold turn skin green?
- Real gold rarely does. Green marks usually come from copper or nickel in plated or low-karat alloys.
AI Gold Expert
Not sure about your piece? Ask Bulawan.
Upload a photo of your jewelry and get AI-powered insights before you buy, sell, or pawn.