Gold purity is one of the first things a buyer checks when valuing jewellery, bars, coins or scrap gold. It tells the buyer how much actual gold is inside the item, which directly affects resale value. Two pieces may look similar, weigh the same, and both appear gold in colour, but if one is 916 and the other is 585, their resale values will be very different.
This is because gold jewellery is rarely made from pure gold alone. Pure gold is soft, so it is often mixed with other metals such as copper, silver, zinc or nickel to improve strength, change colour, or make it more suitable for daily wear. The number stamped on the jewellery, such as 999, 916, 750 or 585, is a purity mark. It shows how many parts of gold are present out of 1,000 parts of metal.
In simple terms, the higher the number, the more gold the item contains. The more gold it contains, the higher its raw gold value will usually be when sold.
What Gold Purity Actually Means
Gold purity tells you the percentage of pure gold in an item. The rest is made up of alloy metals. For example, 999 gold contains about 99.9% gold, while 750 gold contains 75% gold. The remaining percentage is made up of other metals.
This is why purity is closely linked to karat. In the karat system, 24K is treated as pure or near-pure gold. From there, the purity reduces as the karat number gets lower. A 22K item contains less pure gold than 24K, while 18K contains less than 22K. Common fineness marks such as 999, 916, 750 and 585 are simply another way of expressing those karat levels.
For resale, this matters because gold buyers are not mainly paying for how the jewellery looks. They are paying for the recoverable gold content. A heavier piece with lower purity may sometimes be worth less than a lighter piece with higher purity, depending on the final gold content.
999 Gold: 24K Gold With The Highest Gold Content
999 gold is commonly known as 24K gold. It contains about 99.9% pure gold, making it one of the highest purities commonly seen in the market. It is often used for investment bars, bullion, coins and some high-purity jewellery.
Because 999 gold has very high gold content, it usually has strong resale value when compared with lower-purity jewellery of the same weight. If a gold buyer is valuing an item mainly by melt value or raw gold content, 999 gold will generally command a higher price per gram than 916, 750 or 585 gold.
However, 999 gold is also softer than lower-purity gold. This makes it less practical for certain types of daily-wear jewellery, especially pieces that may bend, scratch or lose shape easily. In Malaysia, 999 gold is commonly associated with investment bars and high-purity gold, while 916 gold is widely used for traditional jewellery.
For resale, 999 gold is usually straightforward to value because of its high purity. Buyers will still test and weigh it, but there is generally less confusion about the gold content if the item is genuine and properly verified.
916 Gold: 22K Gold And A Popular Jewellery Standard
916 gold means the item contains 91.6% gold. It is commonly known as 22K gold. The remaining 8.4% consists of other metals, which help improve durability while maintaining high gold content.
This is one of the most familiar purities in Malaysia, especially for traditional gold jewellery such as bangles, chains, rings, pendants and earrings. It is valued because it offers a balance between high gold content and enough strength for jewellery use. Compared with 999 gold, it is more durable for wearing. Compared with 750 or 585 gold, it contains more pure gold and will usually have a higher resale value per gram.
For resale, 916 gold is often attractive because it is widely recognised and commonly accepted by gold buyers. The value is still calculated based on verified weight, tested purity and the buyer’s current buyback rate, but sellers may find that 916 gold is easier to understand and compare because it is such a common local standard.
If you are selling 916 gold, the most important thing is to check whether the quoted price is already a 916 buyback rate or whether the buyer is calculating from a 999 reference price and applying the purity difference.
750 Gold: 18K Gold With More Alloy Content
750 gold means the item contains 75% pure gold. It is commonly known as 18K gold. The remaining 25% is made up of alloy metals.
This purity is popular in many types of fine jewellery because it offers a balance between gold value, durability and design flexibility. Since 18K gold contains more alloy than 22K or 24K gold, it is generally harder and more suitable for detailed designs, gemstones, white gold, rose gold and jewellery pieces intended for frequent wear.
For resale, 750 gold is still valuable, but it will usually be worth less per gram than 916 or 999 gold because it contains less pure gold. A 10g piece of 750 gold contains about 7.5g of pure gold. By comparison, a 10g piece of 916 gold contains about 9.16g of pure gold. This difference is why purity can have such a large effect on the final offer.
That does not mean 750 gold is a bad purchase or a poor-quality item. It simply means its resale value is based on 75% gold content, not on the full item weight as if it were pure gold. The design, brand and stones may matter when buying jewellery, but when selling to a gold buyer for cash, the gold content usually carries the most weight.
585 Gold: 14K Gold With Lower Gold Content But Higher Durability
585 gold means the item contains 58.5% pure gold. It is commonly known as 14K gold. The remaining 41.5% consists of other metals.
This purity is more common in some international jewellery markets, especially for everyday jewellery that needs to be more durable and more affordable than higher-karat gold. Because it has more alloy content, 585 gold is generally stronger than 916 or 999 gold. It can be practical for rings, chains and jewellery worn regularly.
However, for resale, 585 gold has a lower gold content. This means the price per gram will usually be much lower than 999, 916 or 750 gold. A 10g item in 585 gold contains only about 5.85g of pure gold. The rest is not gold, so a buyer will not value the full weight at the pure gold rate.
Sellers should be especially aware of this if they bought 585 jewellery because of its appearance, brand or design. Those factors may have influenced the retail price, but the cash resale value will usually be calculated mainly from gold content.
How Purity Affects Resale Value
The resale value of gold is usually based on a simple principle: the buyer wants to know how much pure gold can be recovered from the item. That means the same item weight can produce very different values depending on purity.
For example, if each item weighs 10 grams, the pure gold content would be approximately:
- 999 gold contains about 9.99g of pure gold.
- 916 gold contains about 9.16g of pure gold.
- 750 gold contains about 7.5g of pure gold.
- 585 gold contains about 5.85g of pure gold.
This is why 999 and 916 gold normally receive stronger resale offers than 750 and 585 gold of the same weight. The buyer is not simply buying “10 grams of jewellery”. They are buying the amount of gold inside that 10 grams.
Gold calculators commonly use weight, purity and live market rate to estimate raw gold value. However, actual resale prices may still differ because buyers apply their own buyback rates, spreads and deductions.
Why The Stamped Number Is Not Always Enough
Many jewellery pieces have stamps such as 999, 916, 750 or 585. These markings are useful, but buyers usually do not rely on them alone. Stamps can fade, be misread, be inaccurate, or, in some cases, be counterfeited. Older jewellery may also have unclear markings.
That is why gold buyers normally test the item before giving a final quote. Testing may include checking the markings, weighing the item, using electronic or PMV screening, acid testing, density checks, or more advanced testing methods, depending on the buyer and item type.
The test result matters because the final quote is based on verified purity, not just the number stamped on the jewellery. If an item marked 916 tests lower, the offer may be reduced. If the purity is confirmed, the buyer can price it more confidently.
How Colour Relates To Purity
Gold purity and gold colour are connected, but they are not the same thing. Yellow gold, white gold and rose gold can all come in different purities. The colour depends on the alloy metals mixed with the gold.
For example, rose gold usually contains more copper, which gives it a warmer pink tone. White gold may contain metals such as palladium, silver or nickel to create a paler colour. Yellow gold keeps a more traditional gold appearance, but it may still contain alloy metals depending on the karat.
This is important because colour alone does not tell you resale value. A yellow piece is not automatically 916, and a white gold ring is not automatically 750 or 585. The buyer still needs to test the actual purity. The World Gold Council notes that gold jewellery can appear in different colours because of alloying, while fineness remains the measure of precious metal content.
Higher Purity Does Not Always Mean Better Jewellery
For resale, higher purity usually means more gold content and therefore stronger raw gold value. But for wearing jewellery, higher purity is not always better.
999 gold is valuable because it is close to pure gold, but it is soft. It may not be ideal for jewellery that needs to withstand daily knocks or hold gemstones securely. 916 gold is still high in gold content but more practical for many jewellery pieces. 750 and 585 gold contain less gold, but they are often stronger and more suitable for detailed designs, modern jewellery styles or pieces worn every day.
This is why buyers and sellers should think about purpose. If the goal is investment and resale value, higher purity, such as 999 or 916, may be more attractive. If the goal is durability, design and daily wear, 750 or 585 may still make sense.
What Gold Purity Means When Selling Jewellery For Cash
When selling jewellery for cash, purity affects three main things: the price per gram, the ease of comparison, and the final offer.
Higher-purity gold usually has a higher buyback value per gram. It may also be easier to compare quotes because buyers often publish or calculate rates by purity. For example, a buyer may have separate rates for 999, 916, 750 and 585 gold.
Lower-purity jewellery can still be sold, but the offer will reflect the lower gold content. Sellers should not expect a 585 gold item to receive the same per-gram price as a 916 gold item. Even if both are real gold, they contain different amounts of gold.
It is also important to remember that non-gold parts are not usually counted as gold value. Stones, beads, enamel, steel springs, clasps with other materials, and decorative components may be excluded or deducted from the final calculation.
A Simple Way To Estimate Resale Value
A basic way to estimate resale value is to multiply the item’s weight by its purity factor and then apply the current gold price or buyer’s buyback rate.
For example, a 20g piece of 916 gold contains about 18.32g of pure gold because 20 × 0.916 = 18.32. A 20g piece of 750 gold contains about 15g of pure gold because 20 × 0.750 = 15.
This does not mean you will receive the full international gold spot value. Buyers usually use buyback prices that account for spreads, handling, refining, testing and risk. But this estimate helps you understand why one piece receives a higher or lower offer than another.
The most useful question to ask a buyer is not simply “What is the gold price today?” A better question is: “What is your buyback rate for this purity, and what weight are you using for the calculation?”
Common Gold Purity Marks At A Glance
999 means 24K gold and contains about 99.9% pure gold. It is often used for bullion, investment gold and high-purity items.
916 means 22K gold and contains about 91.6% pure gold. It is widely used for traditional jewellery and is popular in Malaysia.
750 means 18K gold and contains 75% pure gold. It is commonly used for fine jewellery, gemstone settings and modern designs.
585 means 14K gold and contains 58.5% pure gold. It is durable and common in some international jewellery markets, but it has lower resale value per gram than higher-purity gold.
These marks are useful starting points, but they should still be confirmed through testing before a final resale price is agreed.
The Bottom Line
Gold purity is one of the biggest factors in resale value. The numbers 999, 916, 750 and 585 are not random stamps. They tell you how much pure gold is inside the item, which helps determine how much a buyer may offer.
For resale, 999 gold usually has the highest value per gram because it contains the most gold. 916 gold is also highly valued and widely recognised, especially for jewellery in Malaysia. 750 gold and 585 gold can still be valuable, but their lower gold content means the resale price per gram will usually be lower.
The key is to look beyond appearance and original retail price. When selling gold, what matters most is verified weight, confirmed purity and the buyer’s current buyback rate.
Where To Get Gold Purity Checked Before Selling
Once you understand what the purity numbers mean, the next step is choosing a buyer who can verify them clearly. A transparent valuation should show the item’s weight, tested purity, current buyback rate and any deductions before you decide whether to sell.
Kedai Emas eSunway is a Bandar Sunway gold buyer that purchases jewellery, bars, coins, scrap and broken gold. They test items in front of customers using PMV screening, acid tests and density checks, with quotes based on verified weight and purity. Customers can sell with or without certificates, with service available in English, Bahasa Malaysia, Chinese and Tamil.
Contact Kedai Emas eSunway to have your gold checked, tested and quoted before you decide whether to sell.