Horseshoe Silver Pendant Necklace

The Horseshoe Silver Pendant Necklace by Serge DeNimes, priced at 195 CAD and in stock, offers 925 sterling silver purity guaranteed by UK hallmarking law, with the London Assay Office (established 1300) legally verifying purity through independent third-party testing, maintaining a tolerance of 0.5% (minimum 920/1000) for items over 7.78g.

Purity guarantee

UK hallmark legally guarantees 925 purity through independent third-party testing.

Why this is supported

Under the Hallmarking Act 1973,

any silver item above 7.78 grams sold in the UK must be independently tested before saleWhat a UK hallmark actually guarantees — hallmarking_act_1973_minimum_weight_rule

— so this pendant's 925 stamp is a legally required certification. The hallmark has a narrow tolerance:

a narrow margin that ensures '925' on a hallmarked piece is not an optimistic claim but a measured floorWhat a UK hallmark actually guarantees — 0_5_negative_tolerance

The product's Q&A directly confirms:

Yes, the pendant is made from 925 sterling silver and is hallmarked by the Goldsmiths' Company Assay Office, verifying its authenticity.Does the pendant have a 925 hallmark stamp to verify authenticity?

This gives buyers a legally enforceable guarantee of purity.

Hallmark

London Assay Office hallmark (est.1300) legally verifies silver purity.

Why this is supported

The hallmark on this pendant is from the Goldsmiths' Company Assay Office, which has been testing precious metals since 1300—

The Goldsmiths' Company Assay Office has been testing precious metals since 1300, making the leopard's head mark on this pendant a sign of the world's longest-running consumer quality assurance systemWhat a UK hallmark actually guarantees — london_assay_office_est_1300

This hallmark is part of a three-part system that includes the sponsor's mark, the fineness mark, and the assay office mark—

Every UK hallmark consists of three legally mandated marks — the sponsor's (maker's) mark identifying who submitted the piece, the fineness mark (925 in an oval) stating the purity, and the assay office mark (leopard's head for London) indicating where it was tested — together creating a complete chain of accountability that a lone '925' stamp lacksWhat a UK hallmark actually guarantees — three_part_hallmark_sponsor_fineness_assay_office

Under the Hallmarking Act 1973, this pendant required independent testing before sale, and UK law permits only a 0.5% negative tolerance on the sterling standard, meaning the silver content must be at least 920 parts per thousand. Forging a UK hallmark carries criminal penalties under the Hallmarking Act.

Purity tolerance

925 sterling silver guaranteed ≥920/1000 by UK hallmark with 0.5% tolerance.

Why this is supported

The UK hallmark on this pendant legally enforces a strict purity floor.

UK assay law permits a negative tolerance of just 5 parts per thousand (0.5%) on the sterling standard, meaning the silver content must be at least 920 parts per thousandWhat a UK hallmark actually guarantees — 0_5_negative_tolerance

This floor is verified by independent testing before the hallmark is applied. The complete hallmark consists of three legally required marks—sponsor, fineness, and assay office—

together creating a complete chain of accountability that a lone '925' stamp lacksWhat a UK hallmark actually guarantees — three_part_hallmark_sponsor_fineness_assay_office

and is backed by criminal penalties. The leopard's head ties the piece to the London Assay Office, which is

the world's longest-running consumer quality assurance systemWhat a UK hallmark actually guarantees — london_assay_office_est_1300

, making the 925 stamp a government-authorised certification rather than a self-declaration.

Lab testing

Purity verified by mandatory third-party testing required for silver items over 7.78g.

Why this is supported

any silver item above 7.78 grams sold in the UK must be independently tested before saleWhat a UK hallmark actually guarantees — hallmarking_act_1973_minimum_weight_rule

verifying its authenticityDoes the pendant have a 925 hallmark stamp to verify authenticity?

the sponsor's (maker's) mark identifying who submitted the piece, the fineness mark (925 in an oval) stating the purity, and the assay office mark (leopard's head for London) indicating where it was testedWhat a UK hallmark actually guarantees — three_part_hallmark_sponsor_fineness_assay_office

the threat of prosecutionWhat a UK hallmark actually guarantees — hallmark_counterfeiting_is_a_criminal_offense

the most historically prestigious of the four UK officesWhat a UK hallmark actually guarantees — the_leopard_s_head_mark

, and the solid pendant's weight almost certainly exceeds the 7.78g threshold, making third‑party testing a compulsory step.