* amber (organic) gemstone
Amber: identification, value, and how to spot a fake
Fossilized tree resin, often containing insect/plant inclusions. Baltic amber (40-50 million years old) and Dominican amber (clear blue variety) are notable. Floats in saltwater — a useful test. Very soft.
Published May 30, 2026
Quick facts
- Mineral family
- amber (organic)
- Chemical formula
- C10H16O (fossil resin)
- Mohs hardness
- 2–2.5
- Refractive index
- 1.539–1.545
- Specific gravity
- 1.05–1.1
- Crystal system
- amorphous
- Luster
- resinous
Colors
Amber is found in honey yellow, orange, red, green, blue (rare). The body color, its saturation, and how evenly it spreads through the stone are among the strongest drivers of value.
How to tell real from imitation
No single test settles it, but a few grounded checks quickly narrow things down for Amber. Hardness, brilliance, and the list of stones it is commonly confused with all give you something concrete to look for.
- Scratch resistance: genuine Amber sits at Mohs 2–2.5, so it should resist scratching from softer materials — a stone that mars far too easily is suspect.
- Brilliance & luster: Amber shows a resinous luster and a refractive index of 1.539–1.545; imitations often look glassier or flatter under the same light.
- Density: a real Amber has a specific gravity near 1.05–1.1, so it feels heavier or lighter in the hand than many look-alikes of the same size.
- Commonly imitated by: copal (younger resin), plastic, glass. If a deal looks too good, suspect one of these substitutes first.
- Fast first read: photograph the stone in the Jewelry Identifier app to estimate the gemstone and its likely value range, then confirm anything important with a gemological lab.
Common treatments
- heat treatment
- pressing (reconstituted amber)
Treatments are routine for many Amber stones, but they materially affect value and should always be disclosed — an untreated, lab-certified stone commands a clear premium over a treated one.
What to know about Amber
Fossilized tree resin, often containing insect/plant inclusions. Baltic amber (40-50 million years old) and Dominican amber (clear blue variety) are notable. Floats in saltwater — a useful test. Very soft.
Sources
* Frequently asked
FAQ
- Q. Is Amber hard enough for everyday rings?
- A. Not ideally. At a Mohs hardness of 2–2.5, Amber is soft enough to scratch with everyday wear, so it is better suited to earrings, pendants, or occasional-wear rings with protective settings.
- Q. How can I tell Amber from copal (younger resin)?
- A. Amber and copal (younger resin) can look alike to the naked eye, but they differ in measurable properties — refractive index (1.539–1.545 for Amber), specific gravity (1.05–1.1), and hardness (Mohs 2–2.5). A gemologist confirms the distinction with a refractometer and loupe; the Jewelry Identifier app gives a fast first read from a photo.
- Q. Does Amber come in colors other than honey yellow?
- A. Yes. Amber occurs in honey yellow, orange, red, green, blue (rare). Color is driven by trace elements and treatment history, and it is one of the biggest factors in a stone's value.
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