Buy Valcambi gold bars at Buy Gold Coins. The Valcambi gold bar is available in a number of sizes. The most popular gold bars produced by Valcambi are the 1 Ounce Valcambi gold bar, and the Valcambi combi gold bars. The Valcambi Combi gold bar is available in 50 gram size, and consists of 50 x 1 gram Valcambi gold bars that can break off individually. The 1 Ounce Valcambi Combi gold bar consists of 10 x 1/10 ounce gold bars that individually break off.