What Does 750 Mean on Jewelry? A Quick Guide to Gold Purity

A 750 stamp on jewelry means the piece is 18k gold, which is 75% pure gold by weight. The other 25% is made up of alloy metals that add strength and shape the color. If you have wondered what does 750 mean on jewelry, it is the European way of writing 18 karats, and it describes solid gold rather than a gold finish.

That difference matters when you shop, because many pieces look like 750 gold but are built on steel or brass with a gold-colored surface. Our waterproof gold-look jewelry takes the steel route. In this guide, we will explain how the 750 number works, how it compares with other gold marks, how to tell solid gold from plated, and what suits daily wear.

Quick answer: 750 means 18k gold: 750 parts pure gold per 1,000, or 75%. The remaining 25% is alloy metal such as copper, silver or palladium. A 750 stamp points to solid gold, while plated and PVD-finished pieces carry different labels and only a thin gold surface.

What Does 750 Mean on Jewelry in Karats and Percent?

The number 750 is a fineness mark. It shows how many parts out of 1,000 are pure gold, so 750 equals 75%. That matches 18 karats exactly. To turn any stamp into a percentage, divide it by 10.

Karats count parts out of 24, so 18 karats is 18 divided by 24, or 0.75. Both systems describe the same gold. Fineness numbers are common on European and Asian pieces, while 18K is more familiar in the United States.

The other 25% is not filler. Jewelers blend gold with copper, silver, palladium or zinc to add hardness and set the color:

• Yellow gold: usually silver and copper in balanced amounts.
• Rose gold: more copper, which adds the pink tone.
• White gold: palladium or nickel, often finished with rhodium for extra brightness.

How Does 750 Compare With 14k, 22k and Other Gold Marks?

750 sits in the middle of the common range: richer in gold than 14k, but harder than 22k. The right mark depends on whether you value gold content, color or resistance to everyday wear.

Higher purity means a deeper yellow and a higher price, but also a softer metal. 18k scratches more easily than 14k, so many people choose 14k for rings and keep 18k for pieces that see less contact.

Is 750 Gold Real, and What Do AU750 and 750 Italy Mean?

Yes, a genuine 750 stamp means real, solid 18k gold throughout the piece. The extra letters or words you may see beside it are origin or maker information, not a different purity.

• AU750: "AU" is the chemical symbol for gold, from the Latin aurum. AU750 and 750 mean exactly the same thing.
• 750 Italy: the piece was made in Italy, and the gold is still 75% pure. Italian pieces often add an assay or maker's mark too.
• 18K and 750: two labels, one purity. A piece can carry either or both.

Look for the stamp inside a ring band or near a clasp. A clear, evenly pressed mark is a good sign, but a stamp alone is not proof.

Is 750 Gold Good for Everyday Wear?

Yes, with realistic expectations. 750 gold resists tarnish well because three quarters of it is gold, but it is softer than 14k and picks up fine scratches over time, especially on rings.

How that plays out depends on the piece:

• Rings: take the most knocks, so expect visible wear on 18k bands.
• Bracelets: collect scratches from desks, bags and watches.
• Necklaces and earrings: sit away from most contact and stay smoother for longer.

Some white gold alloys use nickel, so check the alloy details if your skin reacts to certain metals.

How Can You Tell Solid 750 Gold From Plated Jewelry?

Start with the label. A bare 750, AU750 or 18K stamp points to solid gold, while any mention of plating, filling or coating means the gold sits only on the surface. A listing that says "18k gold plated" with no stamp describes a finish.

Can You Get the 18k Gold Look Without Paying for Solid 750?

Yes. A PVD-finished piece gives you the warm color of 18k gold for daily wear at a much lower price than solid gold, as long as you know it is a finish and not a hallmark. Atolea's waterproof jewelry collection is built around that idea.

Atolea pieces are made from high-quality stainless steel with an 18k gold PVD finish, so they are not solid 750 gold, and we describe the finish as about 10x thicker than standard gold plating. 

Final Thoughts

So, what does 750 mean on jewelry? It means solid 18k gold at 75% purity, which is different from a gold finish. Use the stamp to read what you are buying, then match the metal to how you live. For an 18k gold look that handles daily life, browse our waterproof jewelry and check the material details on each piece.

Frequently Asked Questions

Is 750 gold the same as 18k gold?

Yes. 750 is the fineness mark and 18K is the karat label for the same purity: 75% pure gold and 25% other metals. A piece can carry either mark, or both. AU750 and 750 Italy also describe 18k gold, with extra information about the metal symbol or the place of origin.

Is 750 gold real gold?

Yes, a genuine 750 stamp means solid 18k gold throughout the piece, not plating. Because stamps can be faked or misapplied, a jeweler can confirm purity with an XRF scan or an acid test if you are buying or selling a valuable piece.

Will 750 gold turn my skin green or tarnish?

Solid 750 gold resists tarnish because 75% of it is gold. Green marks usually come from plated jewelry whose thin finish has worn through to a base metal. If you react to certain metals, ask about the alloy, since some white gold uses nickel.

Is 750 gold worth more than 14k gold?

Per gram, yes, because 18k contains more pure gold than 14k: 75% compared with 58.5%. The final price also depends on weight, design, brand and stones, so compare pieces by gold weight as well as by the stamp.