How to tell if amber is real
This page explains simple, reliable ways to check whether a piece of amber is genuine. It describes what amber is, visual clues, safe home tests, and when to seek professional verification.
Quick facts
- Hardness
- 2 to 2.5 on the Mohs scale
- Origin
- fossilised tree resin
What amber is
Amber is fossilised tree resin. As a material it is not a mineral like quartz or diamond but a preserved organic substance. Amber can contain plant debris or insects preserved inside, and it is used as a gem in jewellery as well as in decorative objects.
Look and feel: first visual checks
Examine colour, surface and inclusions. Natural amber ranges from pale yellow through orange and brown to green or nearly black. Look for small irregularities: bubbles in glass or modern plastic tend to be perfectly round; natural inclusions and flow lines in amber are irregular. Real amber is lightweight and warm to the touch compared with glass or metal. If the piece is mounted in gold, silver or platinum, check for a hallmark or stamp that might support authenticity, but remember hallmarks can be added to imitation settings.
Hardness and scratch check
Amber is soft compared with many gemstones: it rates 2 to 2.5 on the Mohs scale. A light scratch with a steel pin will mark amber but will not affect harder gemstones. Do not attempt aggressive scratching on finished jewellery; a small, hidden area can be tested if you accept the risk of a mark.
Simple home tests you can do
Float test: dissolve table salt in water until the solution is noticeably denser than plain water and try floating the piece. Genuine amber often floats in a strong salt solution while many plastics sink. Static test: rub the piece with wool or a cloth and see if it attracts small paper bits; amber commonly develops static charge. Heat or needle test: heating a needle and touching an inconspicuous edge will release an odour; genuine amber smells resinous or pine-like when heated, while many plastics smell like burning plastic. Only use the heat test if you are willing to risk a small burn mark. UV light: under shortwave or longwave UV, many ambers fluoresce and show characteristic colours; fluorescence varies by source.
What to avoid and when to be cautious
Avoid solvents or chemicals on finished pieces; some modern imitations are polymer-based and can be altered by solvents, and strong chemicals can damage genuine amber or the mounting. Be cautious of pieces with perfectly shaped bubbles, excessively bright uniform colour, or machine-made textures—these are common signs of imitation. If the piece contains an insect or large inclusion that looks too perfect or is positioned unnaturally, treat the specimen skeptically.
Professional tests and confirmation
When home checks are inconclusive, a gem lab or experienced jeweller can run tests that do not damage the item: infrared spectroscopy, refractive index checks, and professional microscopy can distinguish natural amber from copal and synthetic resins. Labs can also confirm whether a piece is a treated or assembled object. If you need a formal report for insurance or sale, seek an accredited assay or gem-testing laboratory.
If you want digital help
If you prefer a quick visual check before professional testing, you can use Jewelry Identifier to compare markings, colour, and common visual signs of imitation. Jewelry Identifier can help point out which home tests are appropriate and whether a laboratory evaluation is recommended.
Common questions
- Can polished amber be mistaken for plastic?
- Yes. Polished amber and some plastics can look very similar. Use multiple checks: weight and warmth to the touch, the float test in salt solution, static charge after rubbing, and careful inspection for natural flow lines and irregular inclusions. If results conflict, seek professional testing.
- Is Baltic amber different from other amber?
- Baltic amber is a common commercial source with typical colours and inclusions, but visually it overlaps with other ambers. The identification methods are the same: visual inspection, basic home tests, and, when needed, laboratory techniques such as spectroscopy to confirm origin or authenticity.
- Will a hot-needle test damage my jewellery?
- Yes, the hot-needle test can leave a small burn or melt mark. Only use it on an inconspicuous edge and accept the risk of visible damage. If you prefer not to damage the piece, use non-destructive tests or seek professional help.