This bar is the primary format used by central banks and for wholesale trading on the London Bullion Market.
The largest standard gold bar you can purchase is the . While larger custom bars exist for museum display, the 400 oz bar is the global benchmark for institutional trading and is available to high-net-worth individual investors through major mints and bullion dealers. The 400 oz "Good Delivery" Bar largest gold bar you can buy
: Nominally 400 troy ounces (approx. 12.4 kg or 27.4 lbs), though actual weight can vary between 350 and 430 troy ounces . It must have a minimum purity of 99.5% (995 fineness) . This bar is the primary format used by
: To maintain "Good Delivery" status and maximize resale value, these bars are typically kept in accredited professional vaults . If you take physical delivery personally, the bar may need expensive re-assaying before a dealer will buy it back. The 400 oz "Good Delivery" Bar : Nominally
: Individual investors can purchase these from institutions like The Royal Mint or specialized dealers such as BullionStar and BullionVault. Key Investment Considerations