Onyx Dress Stud Set of 4

01  /  Metal and hallmarking

Description

Sterling silver with natural black onyx

Fineness

925 parts per thousand

Net weight

1.9 g per stud

Combined

7.6 g, set of four

Exemption weight

7.78 g for silver, per article

Hallmark status

Below the 7.78 g exemption

A single article weighs 1.9 g, which is under the 7.78 g statutory exemption weight for silver. It is therefore lawfully sold unmarked, and we state that rather than implying a mark.

02  /  How it fastens

03  /  Dress code

Dress codes vary by occasion and by host. These tiers are a common-practice reference, not a rule — where an invitation states something specific, follow the invitation.

04  /  Materials and skin contact

• Nickel-safe: tested to the UK REACH release limit for articles in prolonged contact with the skin (0.5 µg/cm²/week).
• Natural onyx. Stone may be colour-treated, which is standard practice for this material.
• Lead and cadmium content is held within UK REACH limits (lead 0.05%, cadmium 0.01%). Supplier conformity documentation is held on file.
• We do not sell ivory, and we do not use coral, tortoiseshell or any other CITES-listed material.

05  /  Dimensions

Measurements

Head 9 mm · onyx face 7 mm

06  /  About this article

Flat-cut natural onyx set into a sterling bezel. Black studs against a white dress shirt are the conventional evening arrangement.

Each stud is 1.9 g, below the silver exemption weight, so the set is unmarked.