Half Sovereign Values UK: 1817 to Today, Bullion to Branch Mints
The half sovereign has been struck almost continuously since 1817 and is the smaller sibling of the full sovereign at exactly half the gold content (3.66 g pure gold vs 7.32 g). It is one of the most popular fractional gold coins among UK investors thanks to its capital-gains-tax exemption (UK legal tender) and accessible ticket size (~£230 vs ~£460 for a full sovereign). This guide covers gold content, Victorian rarities, the four branch-mint marks (S, M, P, SA), modern bullion premium, and authentication.
Specifications
| Property | Value |
|---|---|
| Gross weight | 3.99 g |
| Fine gold content | 3.66 g (.9167 fine, 22-carat) |
| Troy ounces gold | 0.118 oz |
| Diameter | 19.30 mm |
| Thickness | 1.52 mm |
| Face value | 50p (UK legal tender) |
| Composition | 22-carat gold (91.67% gold, 8.33% copper) |
Branch mints (S, M, P, SA)
Half sovereigns were struck at four of the six sovereign branch mints:
- S — Sydney (1871-1916): 5-15% premium over London equivalents.
- M — Melbourne (1873-1915): 10-25% premium. Key date: 1885 M shield-back at £2,500-4,500.
- P — Perth (1899-1920): 15-30% premium.
- SA — Pretoria (1923-1926): 30-50% premium. Key date: 1923 SA at £3,000-5,500.
The Bombay Mint did not strike half sovereigns, and the Ottawa Mint did not strike half sovereigns — only full sovereigns. See our sovereign mint marks guide for the full mint mark reference.
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