How to Tell If Gold Is Real: Home Tests, Hallmarks and Safe Buying

The quickest way to tell if gold is real is to read the hallmark (such as 585, 14K, 750 or 18K), then confirm it with a non-destructive check like the magnet test and, if anything still feels wrong, a professional test by a jeweler. No single home test is proof on its own, but together they rule out most fakes and plated pieces.

We have tested gold across the counter in Istanbul's Grand Bazaar for three generations. Below is what actually works at home, what only a professional can confirm, and the popular "tests" you should skip because they tell you nothing or damage the piece.

Start with the hallmark

Most real gold jewelry carries a small stamp, usually on the clasp, the inside of a ring band or the bail of a pendant. Use a magnifying glass or your phone camera zoomed in. Common stamps include:

• Karat marks: 10K, 14K, 18K, 22K (sometimes written 14KT or 14ct).
• Fineness numbers: 417, 585, 750, 916, 999. These show gold content in parts per thousand, so 585 means 58.5% pure gold, which is 14 karat.
• Warning marks: GP (gold plated), GEP (gold electroplated), HGE (heavy gold electroplate), RGP (rolled gold plate) and GF (gold filled). These tell you the gold is only a layer over another metal.

A stamp is good evidence but not proof, because a stamp can be faked. Treat it as the first question, not the final answer. For a deeper look at the most common stamp in Europe and Turkey, read our guide to what 585 means on gold, and our gold karat chart lists every number you are likely to see.

Home tests that are worth doing

The magnet test

Gold is not magnetic. Hold a strong magnet (a fridge magnet is often too weak; a small neodymium magnet works well) next to the piece. If the body of the item jumps to the magnet, it has an iron or steel core and is not solid gold. Two cautions: many fakes use non-magnetic metals such as brass or copper, so passing the test proves little, and the tiny spring inside a clasp is often steel, so a slight pull at the clasp alone is normal.

Look for wear and color change

Check high-friction spots: the edges of a ring, the links near the clasp, the back of a pendant. Plated pieces wear through there first and show a silver, pink or gray base metal underneath. Solid gold is the same metal all the way through, so a scratch on it is still gold colored.

Weight and density, as a feel test

Pure gold is very dense, about 19.3 grams per cubic centimeter, much heavier than brass or steel. 14K gold is lighter than pure gold because of its alloy metals, but a solid piece still feels noticeably heavier than a costume copy of the same size. You can measure density at home with a precise scale and water displacement, but small jewelry pieces displace so little water that kitchen equipment rarely gives a reliable number. Use weight as a clue, not a verdict.

Tests to treat with caution

The ceramic streak test

Rubbing gold on unglazed ceramic (the bottom of a mug or tile) leaves a streak: a golden streak suggests gold, a dark gray or black streak suggests something else. The problem is that you are grinding metal off your jewelry. On a thin chain or a fine pendant that is real damage for an uncertain answer. If you try it, use a hidden spot and very light pressure, or better, leave it to a jeweler who uses a proper touchstone.

The skin test

People often say fake gold turns your skin green. Sometimes it does, but real 14K gold can also leave a faint mark on some people, because the 41.5% that is not gold includes copper and silver, which can react with sweat, lotion or makeup. A green finger is not proof either way.

What not to do

• Do not bite it. Biting comes from the days of soft, nearly pure gold coins. Modern 14K and 18K jewelry is hard enough that your teeth will not tell you anything, and you can chip a tooth or dent a hollow piece.
• Do not use household acids or bleach. Vinegar "tests" are unreliable, and bleach can attack the alloy metals in real gold.
• Do not file or cut into the piece to "see inside". That is a professional's job and it permanently marks the item.
• Do not trust the float test. Gold sinks, but so does almost every metal used in fake jewelry.

Professional tests: when you need certainty

If the piece matters, such as an inheritance or a second-hand purchase, ask a jeweler. The two main methods:

One limit applies to every surface method: heavy plating over base metal can fool a quick surface test. A good jeweler knows this and will test a filed spot or check the weight if anything looks off.

Real gold, but which kind?

Many items are "real gold" in a narrow sense: gold plated jewelry has real gold on top, and gold filled has a thicker bonded layer. Neither is solid gold. If the hallmark, wear pattern and weight all point to plating, you have your answer. Our comparison of solid gold, gold filled and gold plated explains how long each layer lasts and why the price difference exists.

14K Solid Gold Cursive Name Necklace View Cursive Name Necklace on Etsy 14K Solid Gold Pave Heart Necklace View Pave Heart Necklace on Etsy 14K Solid Gold Wheat Chain Necklace View Wheat Chain Necklace on Etsy

How to buy gold safely online

Testing is a last resort. It is easier to buy from a seller who makes the facts clear before you pay. Look for:

1. A stated karat and hallmark in the listing, for example "solid 14K gold, stamped 585", not vague words like "gold tone" or "gold finish".
2. Plain language about construction. "Solid" should be stated. Watch for "hollow" or "semi-hollow" in the fine print if weight matters to you.
3. Honest stone descriptions. A seller who labels cubic zirconia as CZ is more likely to be accurate about the metal too.
4. A clear returns policy so you can have the piece tested locally and send it back if it does not match the listing.
5. A real person to ask. Message the seller before buying and ask what the stamp says and where it is.

This is how we sell. Every piece from our atelier is solid 14K gold and stamped 585, never plated, gold filled, vermeil or semi-hollow. Most pieces use cubic zirconia and say so in the title. Returns are accepted, with the exact window shown on each Etsy listing, and Şerif Temizkan answers messages personally if you want a photo of the stamp before you order. You can browse our solid gold necklaces or rings with that in mind.

14K Solid Gold Solitaire Ring View Solitaire Ring on Etsy 14K Solid Gold Flat Wedding Band Polished Ring for Him and Her View Flat Wedding Band Polished Ring for Him and Her on Etsy

A simple checklist

• Find and read the stamp. Note any GP, GF or HGE marks.
• Do the magnet test on the body of the piece, not the clasp.
• Inspect edges and clasps for worn-through color.
• Compare the weight with a similar piece you know is solid.
• If it matters, have a jeweler confirm with an acid test or XRF.

Frequently asked questions

Does real gold stick to a magnet?

No. Gold is not magnetic. If the body of a piece is pulled toward a magnet, it contains iron or steel, although the small steel spring in a clasp can cause a slight pull on its own.

Is a 585 stamp real gold?

585 is the hallmark for 14 karat gold, meaning 58.5% pure gold. A genuine 585 stamp means solid 14K, but stamps can be faked, so buy from a seller you trust or have it tested.

Can real gold turn your skin green?

It can, occasionally. The copper and silver alloyed into 14K gold can react with sweat, lotion or makeup and leave a faint mark, so skin color alone does not prove a piece is fake.

What is the most reliable way to test gold?

A jeweler's XRF analyzer is the most reliable non-destructive test, and the acid test on a touchstone is a long-trusted method. Home tests can rule out obvious fakes but cannot confirm karat.

Does biting gold really show if it is real?

No. Biting only made sense with soft, nearly pure gold coins. Modern gold jewelry is alloyed and hard, so a bite tells you nothing and can damage the piece or your teeth.