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Royal Mint · United Kingdom
Gold Double Sovereign
0.4708 troy oz — 91.67% Gold, 8.33% Coppergoldcurrent
Double-weight sovereign containing 14.63g of fine gold. Also known as the Two Pound sovereign, struck in 22-carat gold.
Physical Specifications
| Mass | 15.976 g |
| Troy Ounces | 0.4708 oz |
| Diameter | 28.4 mm |
| Thickness | 2 mm |
| Edge | reeded |
| Purity | 91.67% Gold, 8.33% Copper |
| Fineness | 0.9167 |
| Density | 17.5 g/cm³ |
| Face Value | 2 GBP |
| Series | Sovereign |
| First Minted | 1820 |
Authentication Reference
Use these values to verify an authentic Gold Double Sovereign. All tests can be performed with a digital scale, callipers, and the EON ping tester.
Weight
15.976grams
Use a 0.001 g digital scale. Calibrate first with a known object (a €2 coin = 8.50g).
Dimensions
Diameter28.4mm
Thickness2mm
Use plastic callipers (not steel — avoid scratching). Or use the camera tool with a bank card as reference (ISO 7810: 85.60mm × 53.98mm).