> The Silver Britannia is struck by the Royal Mint at one ounce (31.1035 g) with a fineness of 999 since 2013. Its buyback value follows the fine weight time *Source : https://meilleur-rachat-argent.fr/en/guides/silver-britannia-value/* --- ● Guide # Silver Britannia: the British investment coin Published on **28/07/2026** · By **Sébastien Joumel** In brief The Silver Britannia is struck by the Royal Mint at **one ounce (31.1035 g) with a fineness of 999 since 2013**. Its buyback value follows the fine weight times the day's spot price, plus a market premium. ## Silver Britannia characteristics The Britannia is the Royal Mint's silver investment coin. Since **2013**, it has been struck at a fineness of **999** (earlier years were 958). It weighs **one troy ounce (31.1035 g)**, about 31.07 g of fine silver. Its reverse shows the figure of Britannia, helmeted and holding a trident. It is a recognised **bullion** coin, fitted with modern security features on recent years (wave-effect background, micro-details). Like other investment ounces, it is sought for its metal; special or Proof editions, however, may fall into the collector category. ## Estimating its buyback value For a recent year: **31.1035 g × 0.999 × the day's silver price**. Beware of Britannias from before 2013, at 958 fineness, whose fine weight is slightly lower (about 29.8 g). The world spot is the same for everyone; the gap between two offers comes from the professional's margin. To place a buyback offer, compare it with the fine weight times the current spot. Our [silver buyback](https://meilleur-rachat-argent.fr/en/silver-buyback/) page lets you compare professionals. The reasoning matches that of the [Silver Krugerrand](https://meilleur-rachat-argent.fr/en/guides/silver-krugerrand-value/), another ounce struck at 999. ## Premium, year and buyback The Britannia's **premium** depends on demand, packaging and condition. The year matters for the fineness: check whether it is a 999 coin (2013 onward) or a 958 coin (before 2013), because the fine weight differs. A coin in its original capsule is generally better valued. At buyback, the professional authenticates the coin (weight, dimensions), reads the year, then applies its schedule. Payment is made by bank transfer or cheque above cash limits, with ID and register entry. Avoid any abrasive cleaning, which has no effect on the fine weight and may devalue the coin. ## Frequently asked questions What is the fineness of the Silver Britannia? Since 2013, the Silver Britannia is struck at 999 for one troy ounce (31.1035 g). Earlier years were 958, with a slightly lower fine weight. Are older Britannias worth as much? Britannias before 2013 are 958 fineness, about 29.8 g of fine silver per ounce, versus 31.07 g for recent 999 coins. The fine weight, and thus the metal value, differs slightly. ## Read also [ Guide 10 francs silver coins (Turin, Hercule): buyback value ](https://meilleur-rachat-argent.fr/en/guides/10-francs-silver-coin/)[ Guide 5 francs silver coins (Semeuse, Hercule): metal value ](https://meilleur-rachat-argent.fr/en/guides/5-francs-silver-coin/)[ Guide 50 francs Hercule silver coin: weight, value, buyback ](https://meilleur-rachat-argent.fr/en/guides/50-francs-hercule-silver-coin/) ## Sell at the best price near you Compare the silver buyers in your city. [See the rankings](https://meilleur-rachat-argent.fr/en/silver-buyback/)