
Gold ingots, also known as gold bars, are a popular commodity for those looking to accumulate wealth. Gold ingots are manufactured by pouring molten gold into a mould and are typically the larger varieties of gold bars. They are differentiated from smaller gold bars, which are produced by minting or stamping sheets of gold bullion. Gold is measured in troy ounces, with one troy ounce equivalent to 31.1034768 grams. The weight of gold ingots varies, with smaller bars weighing between one gram and one ounce, and larger bars weighing up to 400 troy ounces (approximately 12.4 kilograms or 27.4 pounds). The weight of a gold ingot impacts its price, with heavier ingots being harder to sell and more expensive.
| Characteristics | Values |
|---|---|
| Gold Ingot Definition | A generic term for a piece of cast metal, used for both precious and non-precious metals. In the gold market, it refers to bullion products in different shapes or thicknesses. |
| Gold Ingot Creation Process | Gold ingots are created by pouring molten gold into a mould. |
| Gold Ingot Weight | Gold ingots can come in a variety of weights, from 1 gram to 400 troy ounces (11-13 kg). The standard "Good Delivery" gold bar weighs 400 troy ounces (12.4 kg or 27.4 lb). |
| Gold Ingot Value | The value of a gold ingot depends on its weight and the current market price of gold. A 400-ounce gold bar is valued at roughly $750,000. |
| Gold Ingot Purity | Gold ingots are required by the London Bullion Market Association (LBMA) to contain at least 99.5% pure gold. |
| Gold Ingot Serial Markings | Gold ingots may carry certain marks: a serial number, refiner's hallmark, fineness, and year of manufacture. |
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What You'll Learn
- Gold ingots are cast by pouring molten gold into moulds
- Ingots are typically larger than minted bars
- The biggest standardised gold bar is the Good Delivery bar, weighing 400 troy ounces
- Gold bars are measured in troy ounces, which are heavier than avoirdupois ounces
- Gold bars are a popular investment option due to their intrinsic value

Gold ingots are cast by pouring molten gold into moulds
Gold ingots are manufactured by pouring molten gold into moulds. This process is called casting. Casting is a relatively simple process that results in gold bars with unique, irregular shapes and uneven surfaces.
Gold ingots are a specific type of gold bar. The word 'ingot' refers to the process by which they are manufactured. This is what differentiates them from other, smaller bars, which are produced by minting or stamping sheets of gold bullion.
Gold bars can vary in size, from 1 gram to 400 troy ounces (or 12.5 kg). The smallest bars are the most affordable and accessible to individuals. They are also the easiest to sell. Medium bars are usually between 10 ounces and 1 kilogram. The iconic 400-ounce bar is the most expensive and is rarely sold to the public.
The price of a gold bar depends on its weight and purity. Gold is measured in troy ounces, which are heavier than the avoirdupois ounces used in the US customary system. One troy ounce is equivalent to 31.1034768 grams. The standard gold bar internationally traded by central banks and bullion dealers is the Good Delivery bar, weighing 400 troy ounces (12.4 kg).
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Ingots are typically larger than minted bars
Gold bars are classified based on their production process into cast or minted forms, which differ in appearance and market value. Cast bars, similar to ingots, are formed by pouring molten gold into a mould. This method often results in bars with irregular shapes and uneven surfaces, making each bar unique and easily recognisable. Due to their relatively simple production process and minimal handling, cast bars are generally less expensive than minted bars.
Minted bars, on the other hand, are made from gold blanks, which are precisely cut from a flat gold sheet to achieve the desired dimensions. These bars are characterised by their smooth and uniform surfaces, reflecting a more refined and labour-intensive manufacturing process. Minted bars are typically smaller than cast bars, and they are often enclosed in protective packaging or equipped with tamper-evident technology to prevent damage and deter tampering.
Ingots, specifically, are a type of gold bar produced by casting molten metal into moulds. The word 'ingot' comes from the mould in which the bars are cast, and this process differentiates them from smaller minted bars. Ingots are typically larger than minted bars and are usually reserved for bigger sizes.
Gold ingots can come in a variety of sizes, but Good Delivery Bars, also known as "Good Delivery" or standard gold bars, are required to weigh between 350 and 430 troy ounces (approximately 11 to 13 kilograms or 24 to 29.5 pounds). These bars are commonly used in international gold trading and stored by central banks and bullion dealers. The largest standardised gold bar is the Good Delivery bar, weighing about 400 troy ounces.
Gold bars are a popular investment option as they are priced lower per ounce than gold coins or some numismatics, making them an attractive choice for building wealth. Gold is measured in troy ounces, and its price is dependent on its weight and purity.
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The biggest standardised gold bar is the Good Delivery bar, weighing 400 troy ounces
Gold bars are classified based on their production process into cast or minted forms, with cast bars being similar to ingots. The biggest standardised gold bar is the Good Delivery bar, weighing 400 troy ounces (approximately 12.4 kilograms or 27.4 pounds). These bars are also referred to as London Good Delivery bars and are bound by a set of Good Delivery Rules laid out by the London Bullion Market Association (LBMA).
Good Delivery bars are required to weigh between 350-430 troy ounces (11-13 kg). This means that 400oz ingots contain at least 398 oz of fine gold. They are commonly used in international gold trading and stored by central banks and bullion dealers. The value of a Good Delivery bar depends on its gold content and the ever-changing gold spot price. For example, a 400oz ingot would be worth around £400,000 when the spot price is £1,000 per ounce.
Gold bars are measured in troy ounces, which weigh 31.1 grams each, and are often simply referred to as ounces when referring to gold. The standard gold bar held and traded internationally by central banks and bullion dealers is the Good Delivery bar, weighing 400 ozt (12.4 kg; 27.4 lb) nominally. However, its precise gold content is permitted to vary between 350 ozt (10.9 kg; 24.0 lb) and 430 ozt (13.4 kg; 29.5 lb).
Gold ingots are produced by pouring molten gold into a mould, which is where the word 'ingot' comes from. This process differentiates them from smaller bars, which are produced by minting or stamping sheets of gold bullion. Gold ingots are required by the LBMA to contain at least 99.5% pure gold, or 995.0 parts per thousand fine gold. They can come in a variety of sizes, but the 400-ounce bar is a popular option for long-term investing.
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Gold bars are measured in troy ounces, which are heavier than avoirdupois ounces
Gold bars, also known as gold bullion or gold ingots, are measured in troy ounces, which are heavier than avoirdupois ounces. A troy ounce is equivalent to 31.1034768 grams. The standard gold bar, known as a "Good Delivery" bar, weighs 400 troy ounces (approximately 12.4 kilograms or 27.4 pounds). These bars are commonly used in international gold trading and stored by central banks and bullion dealers.
Gold bars can come in a variety of sizes, but "Good Delivery" bars are required to weigh between 350 and 430 troy ounces (11 to 13 kilograms). This means that a 400-ounce ingot will contain at least 398 avoirdupois ounces of fine gold. The value of a gold bar is dependent on its weight and gold content, which can be determined by multiplying its gold content by the current spot price. For example, a 400-ounce ingot, at a spot price of £1,000 per ounce, would have a bullion value of around £400,000.
Smaller gold bars, such as those weighing 1 to 5 grams, typically include a higher premium than larger bars due to the processing effort involved. These smaller bars are popular among investors as they are more affordable and easier to sell. Medium-sized bars usually weigh between ten ounces and one kilogram, offering a balance of value and liquidity. The largest gold bar ever produced is significantly heavier than the standard "Good Delivery" bar and is on display at the Toi Gold Museum in Japan.
Gold is a valuable investment that diversifies portfolios and protects wealth during economic crises. It is also measured in grams, with the smallest bar an investor can purchase typically being one gram (0.032 troy ounces). The price of gold bars varies based on weight, purity, brand, mint, and market demand, with the spot price being a critical factor. Gold prices are typically quoted in grams and troy ounces, making it easy to determine the value of gold ingots.
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Gold bars are a popular investment option due to their intrinsic value
Gold bars, also known as gold bullion or gold ingots, are a popular investment option due to their intrinsic value. Gold has maintained its value over time, and unlike paper currency, coins, and many other assets, it is not susceptible to the same levels of inflation. Gold bars are produced under standardized conditions of manufacture, labelling, and record-keeping, which adds to their appeal as an investment.
Gold ingots can come in a variety of sizes, but the standard "Good Delivery" bar weighs between 350-430 troy ounces (approximately 11-13 kg or 24-29.5 lb). These bars are commonly used in international gold trading and are stored by central banks and bullion dealers. The value of a gold bar is dependent on its gold content and the ever-changing gold spot price. As a result, gold bars are a good investment option for those looking for a stable and valuable asset.
Gold bars are classified as either cast or minted bars, with cast bars being formed by pouring molten gold into a mould and minted bars being created through minting or stamping from rolled gold sheets. Cast bars are generally less expensive than minted bars due to their simpler production process and minimal handling. Minted bars, on the other hand, are more refined and labour-intensive to produce, resulting in a higher price.
When investing in gold bars, it is important to consider the risks of counterfeiting and forgery. Larger bars, in particular, may be partially forged using a tungsten-filled cavity, as tungsten has the same density as gold but is much cheaper. To combat counterfeiting, measures such as holograms and unique serial numbers have been implemented. Additionally, investors should be cautious of "easy profit" promises and should always verify the credentials of the company or individual offering the investment.
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Frequently asked questions
Gold ingots can vary in weight, from 1 gram to 400 troy ounces (approximately 12.4 kilograms or 27.4 pounds).
The smallest gold ingot commonly available weighs 1 gram (0.032 troy ounces).
A "Good Delivery" gold ingot, also known as a "Good Delivery Bar", weighs between 350-430 troy ounces (approximately 11-13 kilograms or 24-29.5 pounds).
As of March 5, 2025, a 400-ounce gold ingot would be valued at approximately $750,000, depending on the spot price of gold.
Gold ingots have long been considered a valuable investment due to their intrinsic value and stability in times of economic crisis. The weight and purity of the gold are important factors in determining the worth of an ingot.











































