Understanding gold sovereign weights and fine gold content is essential when comparing double, full, half and quarter sovereigns. Although these coins are different sizes, they share the same 22ct purity, meaning each contains 916.7 parts of gold per 1,000. The difference between a coin’s gross weight and its fine gold content is the key to understanding what you are buying.
At Gold2u, we help customers compare gold coins clearly and confidently. In this guide, we explain the figures for each sovereign size, what 22ct gold means, why gross weight is not the same as pure gold weight, and what to consider when choosing a coin.
In this guide
- The difference between gross weight and fine gold content
- The verified weights for double, full, half and quarter sovereigns
- How 22ct, or 916.7, purity applies to sovereigns
- Why sovereign size matters when comparing or buying coins
- Practical points to check before placing an order
What do gold sovereign weights mean?
A gold coin’s gross weight is the total weight of the finished coin. This includes the gold itself and the small proportion of other metals used in the alloy. A sovereign is 22ct gold rather than pure 24ct gold, so its gross weight is always slightly higher than its fine gold content.
Fine gold content is the weight of pure gold contained within the coin. It excludes the non-gold part of the alloy. This is why a full sovereign weighs 7.98g in total but contains 7.32g of fine gold. Both figures are useful, but they describe different things.
When a listing gives two weights, it is important to check which measurement is being shown. Gross weight helps identify the physical size of the coin, while fine gold content provides a clearer indication of the amount of pure gold present.
Gold sovereign weights and fine gold content compared
The following table shows the verified gross and fine gold content for the four sovereign sizes covered in this guide. All four are 22ct gold with a fineness of 916.7.
| Sovereign size | Gross weight | Fine gold content | Purity |
|---|---|---|---|
| Double sovereign | 15.98g | 14.65g | 22ct, 916.7 |
| Full sovereign | 7.98g | 7.32g | 22ct, 916.7 |
| Half sovereign | 3.99g | 3.66g | 22ct, 916.7 |
| Quarter sovereign | 2.00g | 1.83g | 22ct, 916.7 |
These figures are useful when comparing like-for-like coins. A double sovereign contains twice the fine gold of a full sovereign, while a half sovereign contains half the fine gold of a full sovereign. The quarter sovereign is the smallest size in this comparison and was introduced in 2009.
What does 22ct gold mean?
Gold purity is commonly expressed in carats for jewellery and some coins. Pure gold is described as 24ct. A 22ct coin contains 22 parts gold out of 24, with the remaining proportion made up of other metals. In fineness terms, 22ct gold is stated as 916.7, meaning 916.7 parts per 1,000 are gold.
The added alloy gives the coin a different composition from pure gold. It also means that a coin must be weighed as a whole before its fine gold content can be understood. For example, the 3.99g gross weight of a half sovereign is not 3.99g of pure gold; its fine gold content is 3.66g.
For customers comparing sovereigns, purity and weight should always be considered together. A larger coin made from a lower-purity alloy cannot be compared accurately with a 22ct sovereign simply by looking at gross weight. The most useful comparison is between coins with the same purity and a clearly stated fine gold content.
Double sovereign: 15.98g gross and 14.65g fine
The double sovereign is the largest of the four sizes listed here. It has a gross weight of 15.98g and contains 14.65g of fine gold. As its name suggests, it contains twice the fine gold content of a full sovereign, while retaining the same 22ct purity of 916.7.
This larger format may appeal to someone who prefers a more substantial gold coin. It can also make comparisons straightforward because its fine gold content relates directly to the full sovereign. As with any coin purchase, it is sensible to confirm the exact description, condition and design before ordering, particularly where historic or special-edition pieces are involved.
Full sovereign: 7.98g gross and 7.32g fine
The full sovereign is the familiar reference point for comparing sovereign sizes. It weighs 7.98g gross and contains 7.32g of fine gold. Its 22ct purity is 916.7, the same as the double, half and quarter sovereigns in this guide.
Because it sits between the larger double sovereign and the smaller fractional sizes, the full sovereign is often a practical choice for customers who want a recognised gold coin without selecting the largest format. However, the right choice depends on your own preferences, including the amount you wish to spend, the design available and whether the coin is intended as a gift or part of a collection.
For an example of a historic coin, you can view our 1917 King George V Full Gold Sovereign – Perth Mint. We also offer modern issues such as the 2017 Queen Elizabeth II Full Gold Sovereign.
Half sovereign: 3.99g gross and 3.66g fine
A half sovereign has a gross weight of 3.99g and a fine gold content of 3.66g. It contains half the fine gold of a full sovereign and remains 22ct gold with a fineness of 916.7.
The smaller format can be useful when a full sovereign is not the preferred size. It may also be considered for a gift, a personal collection or someone who wants to compare fractional sovereigns. The important point is not to confuse the word “half” with half the purity. The coin is not lower-purity gold; it contains the same 22ct alloy, with approximately half the weight and fine gold content of a full sovereign.
Quarter sovereign: 2.00g gross and 1.83g fine
The quarter sovereign is the smallest size covered here. It weighs 2.00g gross and contains 1.83g of fine gold. It has the same 22ct, 916.7 purity as the other sovereign sizes and was introduced in 2009.
Quarter sovereigns offer a compact way to own a smaller gold coin. They can be particularly attractive where the design, year or presentation is the main focus, as well as where a smaller denomination is preferred. For a recent example, see our 2023 King Charles III Quarter Gold Sovereign.
Why gross weight and fine gold content both matter
Gross weight helps describe the coin
Gross weight is the total mass of the coin as supplied. It is useful for identifying the size category and checking that a description is consistent with the type of sovereign being offered. It should not, however, be treated as the weight of pure gold.
Fine gold content supports a fair comparison
Fine gold content removes the confusion created by the alloy. When comparing two 22ct sovereigns, it gives a clearer basis for understanding how much pure gold each contains. This is especially helpful when comparing a double sovereign with a full sovereign, or a half with a quarter.
Purity completes the picture
Neither weight figure tells the whole story without purity. A reliable product description should make the coin’s size, gross weight, fine gold content and purity clear. At Gold2u, we believe straightforward information helps customers make decisions at their own pace.
How to choose between sovereign sizes
There is no single best sovereign size for every customer. Consider the following points before choosing:
- Coin size: decide whether you prefer a larger, more substantial coin or a compact fractional format.
- Fine gold content: compare the pure gold weight rather than relying on gross weight alone.
- Design and date: the monarch, year and design may be important to collectors and gift buyers.
- Purpose: a coin selected as a present may be chosen differently from one selected for a personal collection.
- Condition and presentation: ask for clear details about the individual item, including any photographs or available viewing options.
Our Gold coins collection brings together the types of gold coins we offer, so you can compare available pieces and explore different sizes and designs. For broader context on owning physical gold coins, read 5 Benefits of Holding Physical Gold Coins.
Buying gold sovereigns with confidence
Before purchasing, read the full product description and confirm whether the stated weight is gross or fine. Check the coin’s purity, size, design and date, where those details are relevant. If you are unsure about a listing, speaking directly with a specialist can help you understand the information before you decide.
It is also worth keeping records of your purchase, including the product description and any documentation supplied. If you are considering tax or reporting matters, rules can depend on your personal circumstances and may change, so seek independent professional guidance rather than relying on general information about a coin.
Gold prices can change, and historic, collectible or particularly well-presented coins may have considerations beyond their fine gold content. We do not provide personal financial advice. Our role is to describe the coin accurately and help you compare the available options.
Shop with Gold2u
Gold2u is a small, independent dealer based in Dudley, West Midlands. We offer gold sovereigns, gold coins, natural Australian gold nuggets, small gold bars and antique or old cut diamond jewellery. Our team is happy to discuss the weights, purity and features of individual items in clear, straightforward terms.
Browse our 1917 King George V Full Gold Sovereign – Perth Mint, compare it with the 2017 Queen Elizabeth II Full Gold Sovereign, or explore the smaller 2023 King Charles III Quarter Gold Sovereign. You can also browse the full Gold coins collection.
Frequently asked questions
How much does a full gold sovereign weigh?
A full sovereign has a gross weight of 7.98g and contains 7.32g of fine gold. It is 22ct gold with a fineness of 916.7.
What is the difference between gross weight and fine gold content?
Gross weight is the weight of the complete coin, including its alloy. Fine gold content is the amount of pure gold within that total weight. For a full sovereign, these figures are 7.98g gross and 7.32g fine.
Are all the sovereign sizes in this guide 22ct gold?
Yes. The double, full, half and quarter sovereigns listed here are all 22ct gold with a fineness of 916.7. Their sizes and fine gold contents differ, but their stated purity is the same.
How much fine gold is in a half sovereign?
A half sovereign contains 3.66g of fine gold and has a gross weight of 3.99g. It is the same 22ct purity as a full sovereign, rather than a lower-purity version.
When was the quarter sovereign introduced?
The quarter sovereign was introduced in 2009. It has a gross weight of 2.00g and contains 1.83g of fine gold, with a purity of 22ct or 916.7.
Speak to Gold2u
If you are comparing gold sovereign weights or would like help choosing between double, full, half and quarter sizes, contact Gold2u. We offer free insured UK delivery, are based in Dudley, and can arrange video viewings for selected items. Call us on 07761 345171 to discuss a coin with our team.
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