What Does 750 Stamped on Jewelry Mean?

A 750 stamp means three-quarters of the metal is pure gold: 75.0% fineness, which the karat scale calls 18K. This is the luxury standard — the purity most European houses and high-end designers build in by default — and at early-September 2026 prices a gram of it carries about $104 of gold. If 585 is the workhorse, 750 is the dress horse: richer color, softer metal, higher price per gram, and a very particular gap between what it cost and what it resells for.

What the extra purity actually buys

Color, mostly. At 75% gold the yellow is deeper and warmer than 14K can manage, and the difference is visible across a room to anyone who has handled both. It also buys hypoallergenic headroom — more gold means less of whatever alloy metal a skin reacts to. What it does not buy is durability: 750 is measurably softer than 585, scratches sooner, and wears thinner over decades of daily contact. Jewelers steer engagement rings toward 14K for exactly this reason, and the full tradeoff has its own referee in is 14K or 18K better.

One purity, every color

Rose, white, and yellow 750 pieces all contain the same 75% gold — the remaining quarter does the costuming. Copper-heavy alloy reads rose; nickel or palladium bleaches it toward white (usually finished with rhodium plating that eventually wears through); a balanced mix stays classic yellow. This matters at selling time because the scale does not see color: a rose 750 bangle and a yellow one of equal weight hold identical gold value, whatever the fashion cycle currently prefers.

The designer paradox

750 is the purity where brand names live — and where sellers get their most painful education. A signed designer piece might retail at six or eight times its metal value, but a gold-buying counter pays on the scale, and the scale reads “18K, 12 grams” with total indifference to the signature. The rule of thumb: if a piece carries a name with a real secondary market, price it as jewelry first — auction, consignment, specialist buyers — and only then as metal. The counter should be the floor under a branded piece, never the first stop. For unsigned 750, the floor and the ceiling are close together, and the 18K calculator tells you both.

Reading the neighbors

750 often appears alongside other tiny marks: a maker’s stamp, an assay office symbol on European pieces, sometimes “ITALY” or a workshop number on chains. None of them change the gold content, but together they form the piece’s paper trail — and a coherent set of marks is itself mild evidence of authenticity, in the same way a lone, crisp 750 on an otherwise anonymous casting invites a closer test. As a September 2026 reference, live per-gram figures for every purity sit on the price-per-gram page.

White 750 and the rhodium question at resale

Most white 750 pieces spend their lives under a microns-thin rhodium finish, and by the time they reach a selling decision the finish is usually part-worn — brighter in protected recesses, warmer on the wear points. Sellers sometimes expect a deduction for this; there is none to expect. Rhodium is cosmetic, weighs effectively nothing, and a buyer paying on metal ignores it entirely. The alloy underneath is 75% gold whether the plating is showroom-fresh or twenty years gone, so never accept “the plating’s worn” as a discount argument at a gold counter.

Questions people ask

Is 750 gold the same as 18K?

Identical — 750 parts per thousand equals 18 parts per 24. European convention prefers the fineness number, American convention the karat, and many pieces carry both.

Why is my 750 ring leaving a mark on my skin?

Not because it is fake — the alloy quarter can react with skin chemistry, cosmetics, or chlorine, particularly in white-gold mixes as the rhodium layer wears. Real 750 can mark skin; plated fakes just do it faster and greener. A test settles which you have.

Does 750 hold value better than lower karats?

Per gram it always holds more value, since it holds more gold. As a percentage of purchase price, usually worse: the luxury markup on 750 pieces is larger, and markup is the part that evaporates at resale. When the time comes, the selling guide covers how to keep the metal share of what you paid.