How to tell if vintage jewelry is real

Genuinely old jewelry made before mass production was hand fabricated: cut from sheet, formed, soldered and finished by hand, which leaves small, honest irregularities. Pierced rather than solid galleries, millegrain that varies slightly from bead to bead, and solder joins that are neat but not machine-perfect are all typical of hand work.

A modern cast reproduction tends to show the opposite: a single-piece body with no evidence of separately assembled parts, a faintly grainy or slightly soft surface texture straight from the mold, and decorative detail that is either too crisp or too uniform to have been done by hand.

Diamond and gemstone cutting changed in fairly well documented stages over the last two centuries. Old mine and old European cuts, with their higher crowns, smaller tables and often visible open culets, belong to the nineteenth and early twentieth centuries. The modern round brilliant, with its wider table and shallower crown, became standard from around the mid-twentieth century onward.

A stone cut in a style that postdates its setting, or a setting clearly reshaped to accommodate a stone it was not originally made for, is one of the clearest signs that something has changed since the piece was first made, whether recently or decades ago.

Genuine long-term wear appears exactly where a piece is actually touched or rubbed: the underside of a ring shank, the tips of prongs, the pin catch on a brooch, the clasp of a bracelet. It is gradual and slightly uneven rather than symmetrical.

Artificially aged reproductions sometimes darken recesses to imitate patina, or apply uniform wear across a surface that would not naturally wear evenly. Sharp, unworn edges on a piece claimed to be a century old, sitting alongside deliberately darkened crevices, is worth a closer look.

A hallmark confirms that the metal was tested to a stated standard, and in systems that use a date letter, it confirms the year of testing. A maker's mark, where confirmed, attributes the piece to a specific workshop or house. Both should agree with the piece's construction, metal and claimed country of origin.

A mark alone is not proof of everything. It does not confirm that stones are original to the setting or that the piece has not been altered since it was made, which is why marks are read alongside construction and stones rather than on their own.

No single check above is conclusive by itself, because any one detail can have an innocent explanation. A replaced stone does not necessarily mean a piece is misrepresented as a whole, and an unusually clean piece might genuinely have been well cared for rather than reproduced.

The real test is agreement. When construction, stone cuts, wear and marks all point the same direction, that is strong evidence one way or the other. When they contradict each other, such as a Victorian hallmark on a mount with modern brilliant-cut stones and no wear at all, that pattern is the actual warning sign, more than any single detail alone.

If a piece has meaningful value, sentimental or financial, and you are not confident in your own read of the evidence, a detailed valuation and authenticity report prepared by a qualified gemologist is worth the cost. This typically includes stone identification, construction assessment and an opinion on period and any prior alterations.

Our own in-house gemologist reviews every piece we sell against these same checks before it is listed, and we disclose replacements, repairs and any uncertainty in the description rather than leaving buyers to work it out for themselves.