1 Troy Oz 9999 Fine Solid Gold ABC Mint Bullion Cast Ingot Round Bar 31.10 gr March 2, 2024 / By admin / In troy 1 Troy Oz 9999 Fine Solid Gold ABC Mint Bullion Cast Ingot Round Bar 31.10 gr. 1oz ABC Bullion Cast Bar Gold. The ABC Bullion 1oz gold bar is the cornerstone of the Australian physical gold trading system. Weight: 31.10 grams.