A gold sovereign is worth its gold content plus, for some coins, a collector's premium. In France you sell it to a professional who checks it, pays by traceable means (never cash), records your ID in the police register, and settles the tax. What you should compare is the buyback rate each dealer pays against the public spot price.
Two things drive the value of a sovereign: its gold and, sometimes, its collectability. The classic British sovereign is struck in 22-carat gold (916 fineness) and weighs 7.98 grammes, of which roughly 7.32 grammes is pure gold. That gold content sets the floor: it is worth the day's spot price applied to its fine weight. On top of that floor, certain coins carry a numismatic premium tied to their year, mint mark, rarity and condition, which can lift the price well above the metal alone. A common, worn modern sovereign trades close to its gold value; a scarce date in good condition can be worth considerably more. Bent, drilled or mounted coins usually lose any collector premium and are valued as gold only.
The gold price is public and identical for everyone; the margin is not. Every dealer works from the same spot price, quoted in euros per gramme and updated throughout the day. What separates one buyer from another is the buyback rate: the percentage of spot they actually pay you, minus their margin. This rate is where the real difference lies, and dealers are under no obligation to publish it. A shop paying 90 percent of spot leaves far more in your pocket than one paying 75 percent for the identical coin. For a sovereign with numismatic value, ask specifically whether the offer reflects only the gold or includes the collector premium, because some buyers quote the melt value and keep the premium for themselves. Always weigh at least two or three offers before selling.
Selling gold in France is regulated, and the rules protect you. Payment must be traceable: the buyer pays by bank transfer or cheque, never in cash, whatever the amount. You must present valid photo ID, and the dealer is required to record the transaction in a police register (livre de police) kept for the authorities. On tax, the sale of gold coins falls under one of two regimes. The default is a flat tax on precious metals, deducted at source by the buyer, calculated on the sale price regardless of any gain. Alternatively, if you can prove when and for how much you bought the coin, you may opt for the capital-gains regime, which taxes only the profit and tapers with how long you have held it. Keep any purchase invoice: without proof, only the flat tax applies.
Sell to an established professional, and treat the buyback rate as the deciding factor. Because spot is public, you can check the live gold price yourself and work out roughly what the metal in your sovereign is worth before you walk in. Then ask each buyer a single clear question: what percentage of spot are you paying, and does that include any collector premium? A transparent dealer will answer plainly; an evasive one is telling you something. Bring the coin unclean and unpolished, since amateur cleaning can damage a collectable piece and cut its premium. To line up offers in your area, compare gold buyers in your city and contact more than one before deciding.
Not always. The gold content sets the minimum, but scarce years, mint marks and good condition can add a numismatic premium above the metal value. Common, worn or damaged coins tend to be worth their gold alone.
No. French law requires payment by traceable means such as bank transfer or cheque, whatever the sum. You will also need to show valid ID, and the sale is entered in the dealer's police register.
By default a flat tax on precious metals is deducted at source on the sale price. If you hold a purchase invoice proving when and for how much you bought the coin, you can instead opt for the capital-gains regime, which taxes only the profit and reduces over time.
Because the spot price is public and identical for all, but the buyback rate is not. Each buyer sets its own margin and pays a different percentage of spot, and is not obliged to publish it. That is why comparing offers matters.