925 refers to the sterling-silver standard: 925 parts per thousand, or 92.5%, silver. It describes silver content, not the stone, the surface finish or an independently verified certificate for a particular piece.
Editorial note: Dree Hemingway is not affiliated with and does not endorse Miles Jewellery. The example is independent jewelry education; Miles links are shopping references, not the jewelry in the source.
Read the number as silver content
The FTC jewelry guidance on silver content uses the 925/1,000 sterling standard. The arithmetic is simple: 925 divided by 1,000 is 0.925. The remaining proportion is not identified by the number alone; do not assume an exact alloy recipe or an allergy claim.
A 925 mark and a complete hallmark are different evidence
The London Assay Office explains that a UK hallmark is a group of marks, including fineness, sponsor and assay-office identification. A standalone 925 inscription is therefore not the same thing as identifying a complete independently applied hallmark. A photo of a stamp cannot by itself establish authenticity.
If independent verification matters to your purchase, ask what documentation or hallmark is actually supplied and which item it identifies. Do not treat a stone report as a test of the entire metal article, or assume a celebrity example proves another product’s composition.
A sterling-silver styling example
Vogue’s 2026 Met Gala account describes Dree Hemingway’s look with sterling-silver touches. It illustrates why material naming can be useful alongside styling; the visible silver color alone is not a purity test.
Base material, finish and stone remain separate
The current Miles round moissanite stud earrings lists Base Material: 925 Sterling Silver, Stone: Moissanite, and Finish: Platinum Plated. These three lines answer different questions. A plated finish can cover a sterling-silver base; it does not turn that base into solid platinum or identify a different gemstone.
- Read the exact base-material statement.
- Read the finish separately, even on a silver-tone piece.
- Check the named stone and the selected variant.
- Ask about any mark or document that matters to your decision; do not infer it from “925” in a title.
Compare designs in Miles Moissanite Stud Earrings. For the exact round pair’s sizing and closures, use the product selector; this silver-content explanation does not choose an earring size or backing.