2021 Gold Britannia Proof Half-Ounce Reverse 2020 Gold Britannia Half-Ounce – Proof - The 2021 Gold Britannia Half-Ounce Proof. 999.9 (99.99%) gold. The gold content in 1/2 Troy ounce, with a diameter of 27mm.
2022 Gold Britannia Quarter Ounce Proof Reverse 2022 Gold Britannia Quarter Ounce – Proof - This is the gold proof version of the popular Britannia series. The gold content is 1/4 Troy ounce (7.8g), with a diameter of 22mm. The coin is denominated as £25.
2024 Gold Britannia 1oz Reverse 2024 Gold Britannia 1oz Bullion – Charles III - The 2024 Gold Britannia One Ounce is 999.9 (99.99%) gold (one Troy ounce), with a diameter of 32.69mm. The coin is denominated as £100 and is intended as a bullion coin.