Is RGP the same as ROLLED GOLD PLATE?

Yes. RGP, ROLLED GOLD PLATE, R.G.P. all denote the same material — gold-rolled. Different markets and eras stamp it differently, but the purity is identical.

How do I confirm a RGP 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, scan it with the Jewelry Identifier app, and — when it matters — have an XRF test done by an assay office or gemological lab.

* gold-rolled hallmark

The RGP hallmark: meaning, purity & value

Rolled gold plate. Similar to gold filled but with a thinner bonded layer (less than 1/20 by weight). More durable than electroplate, less than gold filled.

Published May 30, 2026

Quick facts

Metal: gold-rolled
Common regions: United States

Stamps that mean the same thing

This purity may be struck into jewelry as any of: RGP / ROLLED GOLD PLATE / R.G.P.. The mark differs by country and era, but the metal content is identical.

What RGP tells you

Rolled gold plate. Similar to gold filled but with a thinner bonded layer (less than 1/20 by weight). More durable than electroplate, less than gold filled.

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 RGP or an equivalent such as ROLLED GOLD PLATE.
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

FTC Jewelry Guide 16 CFR Part 23.5

* Frequently asked

FAQ

Q. Is RGP the same as ROLLED GOLD PLATE?: A. Yes. RGP, ROLLED GOLD PLATE, R.G.P. all denote the same material — gold-rolled. Different markets and eras stamp it differently, but the purity is identical.
Q. How do I confirm a RGP 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, scan it with the Jewelry Identifier app, and — when it matters — have an XRF test done by an assay office or gemological lab.

* Try it

Identify the jewelry in your hand, right now.

Just take a photo — AI reads the metal, gemstone, hallmark, era, and an estimated value range in seconds. First two scans free, no account required.

Download on the App Store

* Related