Sterling jewelry marks

About Sterling jewelry marks

The group crosses national and stylistic boundaries. Tiffany & Co. developed a major American silver business in the nineteenth century. Georg Jensen established a Copenhagen workshop in 1904, while later American makers such as James Avery and David Yurman built distinct jewellery identities. Taxco workshops in Mexico and Scandinavian firms used their own signatures alongside silver standards and country names.

A quality mark and a maker’s signature answer different questions. JA, D-A, a Jensen oval or a Tiffany name can lead to the business; STERLING or 925 describes the alloy. A British assay group adds a sponsor and testing office, while other countries use different registration systems. A model number or copyright year should be read separately from both.

Silver can also be gilded, so a yellow surface does not conflict with a silver-standard mark. Check the main ornament and its fittings together: a replacement clasp may carry a different mark, and a stamp on a small component does not identify every part of a combined piece.

How to read the marks

Inspect ring interiors, brooch backs, earring clips, bracelet undersides and clasp tabs with magnification.

Copy STERLING, STER, STG, 925 or .925 separately from the designer name or initials.

Read country and office punches as well as the silver number; different countries use different systems.

Compare the exact maker emblem and outline. Colour or a generic 925 stamp cannot identify a designer.

Check the main piece and detachable fittings for replacements or different metal statements.

Read gold plating and silver fineness separately when the surface is yellow.