Analysis of Alloy Content of Modern Gold Sovereigns

Written by Lawrence Chard - Company Director and Expert Numismatist • Last updated 6 Nov 2018

Most people know that the gold content of a sovereign is 22ct.

Expressed as a percentage, this is 91.66%, millesimally it is 916.6; sometimes shown rounded to 917. What most people, including experienced dealers, cannot tell you is the composition of the balance.

2008sovereignuncrev500

2008 Proof Sovereign

Alloy Analysis

We have not included a note of the tolerances (error limits), but the maximum value was 0.003%, applicable to a few of the gold figures. The smaller values have lower tolerances.

 

Date Mint Country Coin Type     Gold Copper Silver Iron Tin Other
1817 London U.K. Sovereign George III 912 40 45 2 0 0
1861 Sydney Australia Sovereign - 916 27 56 0 1 0
1871 London U.K. Sovereign Young Head St. George 915 76 8 0 0 0
1871 Sydney U.K. Sovereign Young Head St. George 919 76 5 0 0 0
1873 Melbourne U.K. Sovereign Young Head St. George 918 77 5 0 0 0
1887 Melbourne U.K. Sovereign Young Head St. George 914 75 6 0 0 0
1957 London U.K. Sovereign First QEII 917 83 0 0 0 0
1974 London U.K. Sovereign QEII Machin 916 84 1 0 0 0
2014 R.M. U.K. Sovereign Latest 918 82 0 0 0 0