Hallmark 958
What does a 958 hallmark mean?
958 means 95.8% pure silver, known as britannia silver. A gram of it is worth £1.13 in metal today and we pay £0.79 (14 Nov 2026, 03:28).
Silver value
£1.13/g
We pay
£0.79/g
The number is parts per thousand
Fineness marks state how many parts in a thousand are the precious metal. 958 is 958 parts in 1,000, so 95.8% of the weight is silver and the rest is the alloy that gives the piece its colour and hardness.
958 silver by weight today
| Weight | Pure silver | Metal value | We pay |
|---|---|---|---|
| 1 g | 0.96 g | £1.13 | £0.79 |
| 5 g | 4.79 g | £5.67 | £3.97 |
| 10 g | 9.58 g | £11.33 | £7.93 |
| 20 g | 19.16 g | £22.67 | £15.87 |
| 50 g | 47.90 g | £56.67 | £39.67 |
Is it real? Three quick checks
- Look for company. A genuine UK hallmark has the fineness number inside a shaped outline, plus a sponsor's mark and an Assay Office mark. A lone number with nothing beside it is a claim, not a hallmark.
- Watch for plating codes. GP, GEP, HGE, RG or a fraction like 1/20 12K mean a thin layer of gold over base metal. These are worth very little as scrap.
- Check with a magnet. Gold, silver and platinum are not magnetic. A pull towards the magnet means a steel or nickel core.
None of these replaces a test. We check every piece with an XRF analyser before we make an offer, so you are paid for what the metal actually is, marked or not.
Instant estimate
Live ratesYou get
£7.93
Indicative, for hallmarked items. Final offer confirmed after testing. Several items?
Ready to sell?
Get an instant estimate, then visit us or send your items by post.