The term 'good delivery' refers to a globally recognised set of specifications for gold bars that are acceptable for settlement in the London over-the-counter (OTC) bullion market. Bars that meet these criteria are known as 'good delivery bars' and are listed on the LBMA Good Delivery List. This standard is not a legal requirement but a voluntary benchmark that has become the de facto quality assurance for the international gold trade.
What the Good Delivery Standard Covers
The LBMA Good Delivery standard specifies several physical and documentary requirements for gold bars. These include:
- Weight: Bars must weigh between approximately 350 and 430 troy ounces (roughly 10.9 to 13.4 kilograms). The exact acceptable range is defined in the LBMA's rules, and each bar's weight must be recorded to the nearest 0.025 troy ounce.
- Fineness: The gold content must be at least 995.0 parts per thousand (99.5% pure). Bars of higher fineness, such as 999.9, are also acceptable provided they meet all other criteria.
- Dimensions: Bars must have a shape and size that allows easy handling and stacking. Typical dimensions are roughly 250 mm in length, 70 mm in width, and 35 mm in height, though slight variations are permitted as long as the bar remains practical for vault storage.
- Markings: Every bar must be clearly and permanently marked with the refiner's stamp (or its recognised abbreviation), the fineness, the serial number, the year of manufacture, and the weight. The stamp must be legible and durable.
- Appearance: Bars must be free of cavities, cracks, and other defects that could indicate tampering or substandard refining. The surface should be clean and the edges reasonably sharp.
Refiners seeking to have their bars listed must undergo a rigorous application process, including an audit of their production facilities and a sample assay of their bars by an independent laboratory. Once listed, they are subject to periodic re-testing to ensure continued compliance.
Why the Standard Exists
The Good Delivery standard was created to solve a practical problem: how to trade large quantities of gold without having to re-assay every bar each time it changes hands. Before the standard existed, each transaction required time-consuming and costly purity testing. By establishing a uniform set of criteria that all market participants agree to trust, the standard enables:
- Efficient settlement: Bars from accredited refiners can be accepted on sight, without further testing, speeding up the transfer of ownership.
- Reduced transaction costs: Eliminating repeated assays lowers the expense of trading and storing gold.
- Global liquidity: A bar produced by an LBMA-accredited refiner in one country is readily accepted by banks, vaults, and traders anywhere in the world.
- Market integrity: The standard provides a baseline of quality that helps prevent fraud and ensures that all bars in the system meet a minimum level of purity and workmanship.
The standard originated in the London gold market in the late 19th century, when the need for a common benchmark became apparent as the city grew into the world's bullion trading hub. The London Bullion Market Association (LBMA) now maintains and updates the Good Delivery List, which includes refiners from more than 30 countries. Inclusion on the list is a mark of prestige and trust for any refiner.
Who Maintains the Standard
The LBMA is responsible for the Good Delivery standard. It sets the rules, approves new refiners, and conducts regular reviews. The association works with a panel of independent assayers to test bars and ensure consistency. The standard is updated periodically to reflect changes in refining technology and market practice, but the core principles of weight, fineness, and marking have remained remarkably stable.
In summary, the Good Delivery standard is the bedrock of the international gold market. It allows participants to trade with confidence, knowing that every bar bearing the stamp of an accredited refiner meets a globally accepted level of quality. Without it, the modern gold market would be far slower, more expensive, and less trustworthy.