- 750 = 750 / 1000 = 0.750 = 75% gold = 18K (18 parts of 24).
- "AU750" is the same mark: Au is the chemical symbol for gold.
- The color can be yellow, white or rose: 750 only states how much gold, not the shade.
- Marks next to 750 matter: a country word and a maker's mark are normal; GP, GF or HGE mean plated or filled.
- A stamp is not proof. A jeweler's electronic test is the reliable check.
What does 750 mean on gold?
750 means 750 out of every 1,000 parts of the metal are pure gold, so the piece is 75% gold and the other 25% is alloy metal such as copper, silver or zinc. This is the thousandths system of marking purity, which is why you see it on a ring, a chain clasp or an earring post. If you searched "750 in gold means", "what is 750 gold" or "750 over 1000 gold", that fraction is the whole answer.
Jewellery stamped 750 turns up on pieces made in many countries, since the thousandths system is used well beyond the US. The number is one of the gold standards recognised by an international hallmarking convention, along with 375, 585, 916 and 999, so a 750 mark is understood across many countries.
Is 750 the same as 18K? (conversion table)
Yes. 750 and 18K are two ways of writing the same purity: 18 parts gold in 24 is exactly 0.75.
| Written as | Means | Where you see it |
|---|---|---|
| 750 | 750 parts per 1,000 | Stamps on rings, clasps, posts |
| 0.750 or .750 | The same fraction as a decimal | Assay and weight records |
| 18K, 18kt, 18 karat | 18 of 24 parts gold | US stamps and listings |
| 18ct | The same, UK style spelling | UK and Commonwealth sellers |
| AU750, Au 750 | Gold (Au), 750 fineness | Chains, some imported pieces |
| 75% | The same, as a percentage | Product descriptions |
To see every other number in the system, use the gold purity numbers guide or the jewelry hallmarks guide. For the lower stamps read 585 (14K), 417 (10K) and 375 (9K).
Is 750 gold real?
A genuine 750 mark means real solid gold at 18K purity, not plated, not filled. The word "genuine" carries weight, because the stamp is struck by the maker and nobody checks it at the point of sale unless the piece was assayed. Treat it as strong evidence from a trustworthy source and weak evidence from an unknown seller.
Two situations to watch: a 750 stamp on a very cheap or very light piece described as solid gold, and a 750 stamp alongside plating letters. Our guide on whether gold plated jewelry is real gold covers the second case in plain terms.
What other marks appear next to 750?
A 750 stamp is usually accompanied by one or more companion marks, and each answers a different question. Read them as a set:
| Mark beside 750 | What it usually means | Changes the purity? |
|---|---|---|
| A country word (ITALY, for example) | Where the piece was made or imported from | No |
| Initials, a number or a small symbol | The maker's registered mark; in Italian marks, a number plus two letters is commonly the maker's number and a province code (collector references give AR for Arezzo as one example) | No |
| A small official symbol | An assay or control mark from an independent office, in countries that use them | No, but it adds trust |
| AU or Au | Gold, as a chemical symbol | No |
| GP, GF, GEP, HGE | Gold plated, gold filled, electroplated, heavy electroplate | Yes: layered, not solid 750 |
| 18KGP or 18K GP | An 18K gold plating layer over another metal | Yes: not solid 18K |
| 925 or 800 | A silver stamp: a silver part, or a silver body under gold | Yes: ask which part carries which mark |
| A second gold number such as 585 | Different parts may be different karats, or a stamping error | Needs a test |
For those plating marks see what GP means, what 18KGP means and what HGE means. For how a country word works on silver, see 925 Italy.
What if a piece says both 750 and 925?
A piece stamped with both numbers is not a plain solid 18K piece: 925 is the silver mark, so something in the piece is sterling silver. It is often silver with a gold layer or gold parts, but the stamps alone cannot tell you which part is which. Look at how the seller describes it, check the wear points for a different color showing through, and have a jeweler test it if the value matters.
Our own jewelry is made this way on purpose. Most AJLuxe pieces are 925 sterling silver with an 18K gold plated surface, and a few use a 316L stainless steel base instead. That is plating over a base, not solid 750 gold, and we say so on each listing. Read sterling silver vs gold plated necklace for the practical differences.
Where is the 750 stamp on a ring, chain or earring?
It sits on a small flat inner surface: the inside of a ring band, the clasp or the little tag next to it on a chain, the post or back of an earring, and the inside of a bangle. On thin chains the tag is often the only flat place, so "750 on a gold chain" means look at the clasp end with a magnifier. Wear and polishing can blur a stamp over decades, so a faint or missing stamp does not prove a piece is fake.
18K (750) vs 14K (585): what changes?
18K holds about 28% more pure gold than 14K and looks richer, while 14K usually wears a little tougher and costs less. Here is the short comparison; the full version is in 14K vs 18K gold.
| Factor | 18K (750) | 14K (585) |
|---|---|---|
| Gold content | 75.0% | 58.5% |
| Color | Deeper, richer yellow | Warm yellow, a little lighter |
| Wear | More gold means it is often described as scratching sooner; real hardness depends on the alloy | Often described as the better everyday balance |
| Skin (general) | Less alloy metal, so usually fewer reactions; not risk free | More alloy than 18K, still usually fewer than 10K |
| Cost logic | More gold per gram, so a higher metal cost | Less gold per gram, so a lower metal cost |
| Best for | Gifts that should feel luxurious, heirloom pieces | Everyday rings, chains and earrings |
The 28% comes from 750 / 585 = 1.28. If you are weighing the lower end, see 10K vs 14K gold and what 14K means. This is general information; ask a doctor about skin reactions.
How do you tell if a 750 stamp is fake?
You cannot prove a 750 stamp is real at home, but you can spot warning signs, and a jeweler's electronic test settles it. A stamp is easy to add to a plated or base metal piece, so check these in order:
- Read the stamp under a magnifier. It should be crisp, evenly struck and spelled correctly. Blobby, painted on or uneven marks are a flag.
- Check the wear points. Edges, the inside of rings and clasps: a different color showing through (grey, silver, coppery) points to plating.
- Look at the price against the weight. A heavy "solid 750" chain priced far below the value of its gold is suspicious.
- Try a magnet, knowing its limit. Gold is not magnetic, so a strong pull is a bad sign, but many fakes are not magnetic either, so passing proves little.
- Get an electronic or X ray test at a jeweler. It reads the actual metal without damage and is the only step here that answers the purity question.
Skip home acid kits on anything you value, since a scratch leaves a mark and the result is easy to misread. More methods are in how to tell if jewelry is real gold.
Can a plated piece be stamped 750?
Yes, and that is a common source of confusion. A 750 or 18K mark on a plated item can describe the plating layer, or be a loose sales mark, and it does not make the whole piece solid 18K. If the listing says plated, filled, vermeil or gold tone, believe the listing words over the number, and see whether 18K gold plated jewelry is worth it for what that construction gives you.
What is 750 gold worth?
750 gold is worth its pure gold content at the current gold price, minus the buyer's margin. The method: weight in grams x 0.75 x today's price per gram. A 10 gram piece holds 7.5 grams of pure gold. Because gold moves daily, we do not print a price per gram, and you should collect two or three quotes before selling. This is general information, not financial advice.
An honest note on our range
AJLuxe does not sell solid 750 (18K) gold, or any solid gold. What we sell is 18K gold plated jewelry on a sterling silver or stainless steel base, which gives the warm gold look at an everyday price, with a plating layer that wears gradually. In stock now:
- Gold Huggie Earrings ($34.99): 925 sterling silver base with 18K gold plating.
- Dainty Heart Necklace ($25.99, a few left): a small 18K gold plated heart pendant.
- Initial Tag Necklace ($24.99): a rectangle tag with your letter, 18K gold plated.
Browse gold plated jewelry or see how plated pieces last in how long gold plated jewelry lasts. US orders ship free and returns are free.
Frequently Asked Questions
What does 750 mean on jewelry?
750 means the metal is 75% pure gold, which is 18K gold. The number is parts of gold per 1,000, so 750 / 1000 = 0.75.
Is 750 gold the same as 18K?
Yes, 750 and 18K are the same purity written in two systems. 18 parts of gold in 24 equals 0.75, which is stamped as 750.
Is 750 gold real gold?
A genuine 750 mark means real solid 18K gold. Because a stamp is only a maker's claim, treat it as strong evidence from a trusted seller and have valuable pieces tested by a jeweler.
What does a 750 stamp on a ring or chain mean?
It means that part of the piece is 18K gold at 75% purity. On a ring it sits inside the band, and on a chain it is usually on the clasp or its tag.
What does AU750 mean?
AU750 means gold (Au is the chemical symbol) at 750 fineness, so 18K gold. It is the same purity as a plain 750 stamp.
What does 925 750 mean on jewelry?
925 is the sterling silver mark and 750 is the 18K gold mark, so the piece mixes silver and gold in some way, often a gold layer or gold parts on silver. The stamps alone do not say which part is which, so rely on the seller's description or a jeweler's test.
Is 750 gold worth more than 14K?
By weight, yes: 750 holds 75% gold against 58.5% for 14K, about 28% more. Retail prices also include design and making costs, so compare grams and karat rather than the headline price.
Can 750 gold be white or rose gold?
Yes. 750 states only the gold share, so yellow, white and rose gold can all be stamped 750, with the shade set by the other metals in the alloy.
All third-party trademarks, brand names and product names are the property of their respective owners. AJLuxe is not affiliated with, endorsed by, sponsored by, or otherwise connected to any third-party brand referenced in this article. Brand names are used solely for accurate comparative reference, and material descriptions reflect each brand's own published product specifications at the time of writing.
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