For both investors and collectors, standard gold bullion is a trusted, reliable investment, serving as a hedge against inflation and a means of preserving wealth when markets fluctuate.
But have you ever heard of Good Delivery gold? In the world of precious metals, these set the standards defined by the London Bullion Market Association (LBMA) and are very important for maintaining quality, trust, and integrity across the global market.
In this guide, we’ll cover everything you need to know about Good Delivery gold bars, their specifications, uses, and benefits. We’ll also share advice on how to verify and buy one the next time you decide to invest.
What does “Good Delivery” mean?
When people talk about a “Good Delivery” gold bar, this doesn’t mean the bar is delivered quickly and efficiently — far from it! Instead, it is a term used to confirm that it meets the LBMA’s stringent standards for weight, purity, dimensions, appearance and authenticity. These rules and regulations enable bullion sellers and investors to purchase and trade confidently, knowing they are dealing with a high-quality, globally-recongised product.
Key specifications for a Good Delivery gold bar
Below is an outline of the official specifications that all Good Delivery bars must uphold to be certified by the LBMA and accepted by central banks and international markets. Failure to comply with these requirements could result in a refiner being removed from the Good Delivery List (which we’ll explain later).
Weight
A Good Delivery gold bar is quite large, typically weighing between 350 and 430 troy ounces (11 – 13kg), including popular sizes such as 12.5kg gold bars (400 troy ounces). This permitted range gives refiners some flexibility during production while still adhering to the fine gold content criteria needed for large-scale trading.
Dimensions
Because Good Delivery gold bars are manufactured by different refiners, their length, width, and height must fall within the LBMA-accepted ranges to ensure uniformity across the entire “Chain of Integrity” for quality assurance, transportation and secure storage. The recommended dimensions are as follows:
- Length (Top): 210-290 mm (~8.3-11.4 inches)
- Width (Top): 55-85 mm (~2.2-3.3 inches)
- Height: 25-45 mm (~1-1.8 inches)
Finesse
The finesse of a Good Delivery gold bar must be a minimum of 995.0 parts per thousand pure gold (99.5%). Although most refiners produce gold bars at 99.9% purity, the Good Delivery threshold is designed to account for gold’s natural impurities. Anything below this, however, is rejected.
Markings
Every bar is clearly marked using either conventional (pressure) stamping or dot matrix (pneumatic punching). This includes four identifiers: the assay stamp (hallmark of the refiner), fineness, serial number, and year of manufacture. Together, they provide full traceability, allowing buyers to quickly confirm authenticity.
Casting Method
Unlike minting, Good Delivery gold bars are made by casting molten gold into a graphite or cast-iron mould, or by melting pure gold grains into an induction tunnel system. This creates a unique, slightly uneven form that is instantly recognisable as a cast bar.
Shape and Appearance
The final gold bar should be rectangular-trapezoidal to make it easier to handle and stack. The surface must also be smooth and free of defects such as cavities, cracks, holes, dirt, and “slugs” (loose pieces of metal), as these can affect its weight and overall appearance.
Who uses Good Delivery gold bars?
Good Delivery bars are not your average ingots. Due to their immense size and high price (each worth over £1 million), they are generally unattainable for smaller, individual investors. For the world’s largest financial institutions, these gold bars are essential to wholesale markets in major cities like London, New York, Zurich, and Hong Kong, rather than for typical daily investment.
For instance, central banks (such as the Bank of England) and governments use Good Delivery bars to maintain national gold reserves and for international settlements between countries. Their trusted standard enables them to be audited and traded without further assaying.
On the other hand, institutional investors (e.g., hedge funds, pension funds) and gold-backed Exchange-Traded Funds (ETFs) hold Good Delivery bars as a liquid form of physical gold to back their financial products and/or digital shares while minimising risk.
How do refiners qualify on the LBMA Good Delivery List?
The LBMA maintains a “Good Delivery List” of accredited refiners such as PAMP, Metalor or Umicore, who must prove they can meet its standards to produce high-quality gold and silver bars. This is a rigorous process that often takes years to complete, but it is done to ensure the integrity of the market. To qualify, a refiner must satisfy the following criteria:
Market history & experience: Refiners must have been in operation for at least 5 years, with at least 3 years of refining the relevant gold or silver metal for which they are seeking accreditation.
Production capacity: A strong track record of producing at least 10 tonnes of gold or 50 tonnes of silver on an annual basis. This guarantees the refiner can reliably meet global demand.
Financial stability: According to the LBMA, they must have a net worth of £15 million or more. It doesn’t directly affect the quality of the gold bar, but ensures the refiner has the financial backing to handle their operations and liabilities.
Technical abilities: Refiners must meet the exact purity, weight, fineness, markings, and appearance requirements set out by the LBMA. Applicants submit a sample of 24 gold bars, where “Good Delivery Referees” perform tests to verify their compliance.
Compliance: They must comply with the LBMA’s Responsible Gold Guidance (RGG), which follows OECD standards to ensure gold is not linked to conflict, human rights abuses, money laundering, or terrorist financing.
Once a refiner passes these checks and is approved, they are added to the list, signalling to buyers worldwide that they are globally recognised, trusted, and ready to go to market. Currently, there are 66 gold refiners on the London Bullion Market Association’s Good Delivery List.
Why invest in Good Delivery gold bars?
So, we’ve gone over the basics of Good Delivery bars, but how can they benefit an institutional investor like yourself? Well, there are several benefits to buying a Good Delivery gold bar, from lower premiums to high liquidity, helping you maximise your portfolio diversification and grow your wealth.
Global trust and recognition
As we already know, Good Delivery bars are widely accepted by the LBMA, making them one of the most marketable forms of gold available. They can be traded on the “Loco London” exchanges, reducing the need for time-consuming or expensive re-assaying because they meet the required standards.
High liquidity
Because they are highly regarded, Good Delivery bars can be quickly bought and sold among banks, bullion dealers, and financial institutions. You’ll be able to liquidate your investment knowing the bar’s quality and authenticity are internationally accepted and verified.
Lower premiums
It is well known that larger bars (including 1 kilogram bars) offer the best price per ounce compared to smaller 10g bars or coins. All those manufacturing and administrative costs are spread over a much larger volume of gold. As such, the premium (the markup over the raw gold price) on a Good Delivery bar is significantly lower.
Part of the “Chain of Integrity”
Good Delivery bars are tracked from the moment they leave the refiner. This process is called the “Chain of Integrity”, and not only guarantees the bar’s authenticity but also prevents any risk of tampering or counterfeiting at every stage of the process. Again, it ensures the buyer receives a product that is exactly as promised.
Efficient for professional storage
Finally, Good Delivery gold bars are perfectly made for high-density stacking in professional storage vaults. Their trapezoidal design enables institutions and large-scale investors to store millions of pounds worth of gold within a surprisingly compact area, leading to minimal costs for storage and insurance.
How to buy a Good Delivery gold bar in 5 steps
If you’re considering buying a Good Delivery gold bar, then there are a few factors to keep in mind to help you make smarter investment decisions in precious metals. After all, this is a significant undertaking that requires careful research and planning to ensure a successful purchase. Here’s a quick step-by-step guide:
1. Choose a reputable LMBA-approved dealer
With such a high-value item, it is crucial that you find a trusted bullion dealer that has a direct relationship with the London Bullion Market. Always carry out due diligence by making sure they are a member of the LMBA or BNTA (British Numismatic Trade Association), and offer transparent pricing for Good Delivery bars.
2. Complete “Know Your Customer” checks
Before purchasing a Good Delivery bar, investors must complete standard Know Your Customer (KYC) and anti-money-laundering (AML) checks. These legal requirements are designed to prevent fraud, financial crime, and the misuse of high-value assets. Therefore, you’ll need to:
- Provide photo identification (passport or drivers liscence)
- Proof of address (a utility bill or bank statement will do)
- Confirm the “source of funds” (especially important for large transactions)
- Registration Documents (for business owners)
3. Arrange secure storage and insurance
Good Delivery bars are not suitable for personal possession, due to their value, size, insurance and high security risks. They must be delivered directly from the refiner or a secure courier into an LBMA-approved vault. This arrangement certifies a secure chain of custody and maintains the bar’s Good Delivery status.
4. Complete payment
After compliance checks are complete and storage is arranged, all that’s left is to pay. Most transactions of this scale are completed via bank transfer. Your bullion dealer will confirm the final price based on the live spot price, including any premiums (around 0.5%-1.5%) or fees. Be aware that the prices move fast, and the agreed sum may only be locked in for a short window. So, it’s important to act promptly to secure the quoted rate!
5. Finalise documentation
Once payment has been received, the final step is to finalise the official records of the transaction. These will include an ownership certificate, bar serial number, assay details, and vault storage confirmation if the bar is held in professional custody. Keeping these documents safe makes future sales or transfers simpler and allows you to track your holdings over time.
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