JewelCheck · AI Jewelry Identifier

Identify Gold Jewelry from a Photo

JewelCheck helps you identify gold jewelry from a picture. The AI reads legible hallmarks, judges color and wear, and estimates whether a piece is likely solid gold, gold-filled or plated, and at what karat, while being clear about what only an acid or XRF test can settle.

Identify Gold Jewelry See how it works

How to identify gold jewelry

Identifying gold jewelry from a photo starts with the same visual approach a jeweler uses before any testing: the color and warmth of the metal, any hallmark stamped into the piece, wear patterns at edges and high points, and how the piece is constructed. Each of these adds a piece of evidence, but hallmarks matter most, because a legible stamp like 585 or 750 points directly to a specific gold purity rather than a rough estimate from color alone.

JewelCheck reads whatever hallmark is visible, weighs it against the color and apparent wear, and gives you a plain-language estimate of what the piece most likely is, while being upfront about what would need an acid or XRF test to confirm. If your piece looks more white than yellow, our silver identifier covers those white-metal distinctions as well, since they are easy to mix up in a photo.

Gold hallmarks and what they mean

10K or 417 — 41.7% gold, the US minimum karat
14K or 585 — 58.5% gold, the most common standard in the US and Europe
18K or 750 — 75% gold, a richer color, common in fine jewelry
22K or 916 — 91.6% gold, common in South Asian and Middle Eastern jewelry
24K or 999 — 99.9% pure gold, very soft
GP, GEP or HGE — gold plated or electroplated, a thin layer over base metal
GF or 1/20 12K GF — gold-filled, a thicker bonded layer of gold
925 on a gold-colored piece — gold-plated sterling silver, often called vermeil
Maker's marks and assay-office marks vary by country

Gold colors

Yellow gold
Alloyed with silver and copper; a higher karat looks richer and warmer.
White gold
Alloyed with palladium or nickel and usually rhodium plated; may show a faint yellow tint where the plating wears.
Rose gold
Higher copper content gives a pink to reddish tone; common in vintage Russian and modern pieces.

What AI can identify versus what requires testing

From a clear photo

Color family and a karat estimate from hue
Legible hallmarks and their meaning
Plating wear where base metal shows
Style and era
Vermeil indicators such as a 925 stamp

Only with a test

Actual purity by acid or XRF
Whether a hallmark is genuine or counterfeit
Gold-filled versus solid when unmarked
Weight and melt value
Hollow versus solid construction

JewelCheck provides AI-powered identification insights from photos. It is not a substitute for a professional gemological certification or appraisal.

Is my gold real? What a photo suggests

A few visual signs suggest plating rather than solid gold: worn high points where a different metal color peeks through, a visible color change right at an edge or seam, and greenish or dark residue on skin-contact areas like the inside of a ring. A legible hallmark is the strongest single visual clue to purity, since it is a direct claim rather than an inference, but a stamp can be worn, faked, or simply belong to a different, unrelated piece that was recast.

Unmarked pieces are common in antique and handmade jewelry, especially from before hallmarking was standardized in a given country, and that does not necessarily mean the gold is fake. If a piece is unmarked, heavily worn, or you are considering a purchase, sale or insurance decision based on its gold content, visit a jeweler for an acid or XRF test, which settles purity in a way no photo can.

Gold identifier FAQ

Can JewelCheck tell if gold is real?

JewelCheck suggests a likelihood based on the hallmark it can read, the color of the metal, and visible wear patterns such as a different metal showing through at edges. It cannot replace an acid or XRF test, which are the only ways to confirm actual gold content. For jewelry you are about to buy, sell or insure, use JewelCheck as a starting point and confirm anything valuable with a proper test.

Can it read hallmarks?

Yes, when the hallmark is legible in your photo. Small stamps like 585 or 750 can be tiny and shallow, so we recommend taking a close-up, well-lit macro shot of the mark in addition to a photo of the whole piece. A sharp close-up gives JewelCheck much more to work with than a wide shot where the stamp is just a few blurry pixels.

What does 585 mean on jewelry?

585 is a purity mark meaning the metal is 58.5% gold, which corresponds to 14 karat gold, the most common standard in the US and much of Europe. The same numbering pattern applies elsewhere on the scale: 750 means 75% gold, or 18 karat, and 916 means 91.6% gold, or 22 karat. These three-digit marks are simply the karat expressed as a percentage of pure gold.

Does it estimate the value of gold jewelry?

JewelCheck can give a rough value range based on the estimated karat and the apparent size of the piece, which is useful for a quick sense of whether something is worth further attention. It is not a weight-based melt value, since that needs an actual scale reading, and it is not a formal appraisal. Treat it as a starting estimate rather than a number to sell or insure against.

Found a gold piece?

Photograph the hallmark and the piece, and let JewelCheck estimate what it is.

Identify Gold Jewelry

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