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· Written by Connor Jones, Editor

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.

Last updated: 5 May 2026
In brief. Modern bullion half sovereign at gold spot £1,750/oz: £230-280. Common-date Victorian Jubilee Head: £260-350. Common-date shield-back Victorian: £300-450. 1923 SA Pretoria: £3,000-5,500. 1937 George VI proof: £800-1,500. 1839 Una and Lion proof: £3,500-7,000+. CGT-exempt as 50p face-value UK legal tender. No half sovereigns struck 1938-1979.

Specifications

PropertyValue
Gross weight3.99 g
Fine gold content3.66 g (.9167 fine, 22-carat)
Troy ounces gold0.118 oz
Diameter19.30 mm
Thickness1.52 mm
Face value50p (UK legal tender)
Composition22-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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