Is Pd850 the same as PD850?

Yes. Pd850, PD850 all denote the same material — 85.0% palladium. Different markets and eras stamp it differently, but the purity is identical.

How do I confirm a Pd850 stamp is genuine?

Look at the mark under 10× magnification for crisp, even strikes, cross-check the weight-to-volume ratio against the expected density (11.4 g/cm³ for this alloy), scan it with the Jewelry Identifier app, and — when it matters — have an XRF test done by an assay office or gemological lab.

* Palladium hallmark

The Pd850 hallmark: meaning, purity & value

Pd850 is 85% palladium. Used in white alloys and some jewelry; price off palladium spot × 0.85 × grams.

Published May 30, 2026

Quick facts

Metal: Palladium
Purity: 85.0%
Fineness: 850/1000
Common regions: European Union, Japan
Density: 11.4 g/cm³
Standard: ISO 9202

Stamps that mean the same thing

This purity may be struck into jewelry as any of: Pd850 / PD850. The mark differs by country and era, but the metal content is identical.

What Pd850 tells you

Pd850 is 85% palladium. Used in white alloys and some jewelry; price off palladium spot × 0.85 × grams.

How to check it yourself

Examine the stamp under a 10× loupe — genuine marks are crisp and evenly struck, not doubled or smeared.
Confirm the mark reads Pd850 or an equivalent such as PD850.
Weigh the piece and estimate its volume — the density should land near 11.4 g/cm³ for this alloy.
Photograph it in the Jewelry Identifier app to read the metal, hallmark, and any gemstones from the image.
For a binding result, have an assay office or gemological lab run an XRF purity test.

Sources

ISO 9202
Trade hallmark references

* Frequently asked

FAQ

Q. Is Pd850 the same as PD850?: A. Yes. Pd850, PD850 all denote the same material — 85.0% palladium. Different markets and eras stamp it differently, but the purity is identical.
Q. How do I confirm a Pd850 stamp is genuine?: A. Look at the mark under 10× magnification for crisp, even strikes, cross-check the weight-to-volume ratio against the expected density (11.4 g/cm³ for this alloy), scan it with the Jewelry Identifier app, and — when it matters — have an XRF test done by an assay office or gemological lab.

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