
JMH
- Maker
- JMH Jewellery attributed, not confirmed
- Struck in
- Dublin, Ireland attributed, not confirmed
- In use
- from 1973 attributed, not confirmed
- Recorded on
- 2 pieces
The stamped mark "JMH" is the maker's sponsor mark for JMH Jewellery, a family-run design and manufacturing workshop founded in Dublin, Ireland, in 1973. The mark is applied to fine jewelry produced by the firm, which specializes in traditional Irish motifs.
Pieces carrying this mark are predominantly Celtic and heritage styles, including Claddagh rings, Trinity knots, and woven Celtic knotwork bands cast in sterling silver or gold.
On authentic pieces, the "JMH" mark is commonly found stamped alongside standard Irish assay office hallmarks—often struck at Dublin Castle—including the "925" sterling purity stamp, an origin mark reading "IRELAND", and Irish date and assay symbols. The presence of official Dublin assay hallmarks reliably distinguishes JMH Jewellery pieces from unrelated makers using the same initials.
The mark on different pieces
Previously sold with this mark
Kept on the record — a maker's back catalogue is most of the evidence that a mark is what we say it is.
Struck alongside
Pieces carrying this mark are also struck with these.
What this entry is based on
- 2 pieces carrying this mark, handled and photographed by this shop Written with the piece in hand. No published hallmark reference covers most of these marks.
Nothing outside this shop has been checked for this mark yet. What is above comes from the pieces themselves and from what was written while they were in hand.
Know something we don't about this mark? Tell us — corrections from collectors are how a reference like this gets better.


