What the words on a jewelry label are allowed to mean

Jewelry has a vocabulary problem. Two rings can look identical in a photograph, cost ten dollars apart, and be described in words that sound the same but are not. The words are not marketing inventions. Most of them are defined in a federal guide, and knowing four or five of them settles almost every question a product description raises.

This guide sets out the definitions that matter for costume jewelry, in the order they change a decision. Every count about this range is taken from the pages on this site.

The Federal Trade Commission publishes guides for the jewelry trade, and the first section is the one that gives all the others their teeth:

That list is worth reading twice. Metallic content is in it. So is treatment, and so is durability. A maker who calls a brass ring gold, or a coated stone untreated, is not making a stylistic choice. That is misrepresenting a defined thing.

What follows are the specific rules that sit under that sentence.

Four terms describe gold on a piece that is not solid gold, and they are not interchangeable.

Gold plated means a layer of gold applied to a base metal. The guides do not let a maker simply call such a piece gold:

Gold electroplate is plating applied by an electrical process, and the guides tie the term to the process rather than to the look:

Gold filled is a different construction entirely: a layer of gold alloy mechanically bonded to a base, thicker than plating by an order of magnitude. It costs more and it lasts longer, and almost nothing in costume jewelry is gold filled.

Gold wash is the thinnest of all, and the guides single out the trick it enables. If the gold layer is covered by a base metal and then washed with gold again, that has to be disclosed:

In this range 10 pieces state a plating in the maker's own words, and the rest name the metal itself. The table below is the full list of metals the maker names, counted.

Silver is the easiest of the precious metals to read, because the word has a fixed threshold:

That is where the 925 stamp comes from. Nine hundred and twenty five parts silver in a thousand, with the balance usually copper for hardness. In this range 56 pieces state sterling silver.

Two neighbouring phrases mean less than they sound. Silver plated is a coating over a base metal, and silver tone means the colour and nothing else. Neither is silver in the sense the guides use.

Stainless steel is the other honest workhorse and the most common metal here: 119 pieces state it. It is not precious, it does not tarnish, and for anything that sits against skin all day it outperforms plated brass by a wide margin.

The stone vocabulary splits three ways and the split matters more than the words suggest.

Cubic zirconia belongs to none of those three. It is its own material, a zirconium oxide crystal grown for the purpose, and it is the most common stone in this catalogue: 211 pieces state it. It is harder than glass, it holds a facet, and under a loupe it is not a diamond.

Simulated pearl appears on 39 pieces here and enamel on 41. Enamel is the one that behaves differently from every other setting: it is glass fused to metal, it chips rather than scratches, and a chipped enamel wing on a brooch cannot be repaired at this price.

Pearls have their own set of sections in the guides, and the reason is that a convincing imitation costs almost nothing to make. The rule requires the qualifier to sit next to the word and to be as visible as it is:

The mechanism is worth understanding because it explains the phrasing you see everywhere. A qualifier in small grey type under a headline that says pearl does not meet the standard. It has to be immediately before the word and equally conspicuous:

Every pearl in this range is a simulated one and the pages say so. 39 pieces state simulated pearl, which in practice is a glass or resin bead with a coating of pearl essence. It behaves like glass: it chips rather than dents, and the coating wears at any point that rubs.

Two terms the guides call out by name are worth recognising in the wild. Faux pearl and fashion pearl both sound like categories and are neither. They describe an imitation, and the rule treats them as qualifiers that must be used honestly rather than as a way around the word.

Almost every coloured stone on the market has been treated in some way: heated to deepen a colour, filled to hide a fracture, dyed, or coated. The guides require the ones that matter to be disclosed, because a treatment changes both value and care.

The general prohibition is the one to remember, and it covers treatment explicitly:

For costume jewelry the practical version is short. Colour that comes from a coating wears off at the edges. Colour that comes from the material itself does not. A coated stone should not go near an ultrasonic cleaner, and neither should a filled one.

Where the maker names a stone here, the page repeats the name and nothing more. Where the description says only stone or crystal, that is what the page says, because inventing a species would be exactly the misrepresentation the section above describes.

A mark stamped inside a ring or on a clasp is a quality mark, and there are only a handful worth recognising.

The mark is not a guarantee on its own, because a mark can be applied by anyone. It is a claim, and the sections above are what make a false one actionable rather than merely rude.

The words above turn a product description into a short checklist. In order of how much they change the answer:

That last line is the one worth keeping. On this site a page that does not name a metal is a page where the maker did not name one, and we leave the line out rather than filling it with a plausible word.

The range here runs from $2.99 upwards, and price is a weak signal about material at this level. A stainless steel ring and a plated brass ring can carry the same figure, and the steel one will outlive the other by years.

Price is a better signal about two other things. It tracks the amount of hand work in a piece, so a brooch with forty set stones costs more than a plain band. It also tracks the size of the run, and a seasonal piece made once is dearer than a staple made continuously.

The practical rule is to read the metal line first and the price second. If the metal is not named anywhere, the price is telling you nothing at all.

Some words in jewelry descriptions carry no fixed definition at all. They are not forbidden, and they are not information either.

Tone. Gold tone and silver tone are colour words. They say nothing about the metal underneath, and they are the honest way to describe a finish when no precious metal is present.

Vermeil is the one exception in that family and it is defined: sterling silver with a gold layer of a stated thickness. It is rare in costume jewelry and worth noticing when it appears.

Hypoallergenic has no jewelry definition at all. Two sellers can use it for two different alloys, and neither is wrong because there is nothing to be wrong about. The useful line is the metal itself.

Nickel free is a claim about a specific metal and it is checkable, which makes it more useful than the word above. It is also the claim most often applied to a plated piece where only the top layer is nickel free.

None of those four should end a decision. The metal line and the stone line should.

The catalogue here runs to 524 pieces, and the honest summary is that it is costume jewelry that names its materials. 119 pieces state stainless steel, 56 state sterling silver, 34 state brass or copper, and 10 state a plating.

On the stone side 211 pieces state cubic zirconia, 41 state enamel and 39 state simulated pearl. None of the pages here claim a natural gemstone, because none of the descriptions do.

What the range does not have is a hallmark on most pieces, a lab report on any piece, or a warranty beyond the one the retail partner gives at checkout. Those absences are normal at this price and worth saying once rather than implying by silence.

Two more guides here carry the rest of it. The guide on metal against skin covers what plated brass does over a year of wear and why some people go green. The guide on buying for a child covers the lead rules and the small parts problem, which are the two things that make jewelry for children a different purchase entirely.