Scrap Gold Price Calculator — Live UK Rates Before You Sell
Estimate the value of gold jewellery, broken gold, dental gold, coins, and bars using live market-linked rates. Check the current price per gram for 9ct, 14ct, 18ct, 22ct, and 24ct gold before visiting Hatton Garden or posting items from anywhere in the UK. There is no obligation to sell and no hidden fees — the amount shown online is what we pay.
Already know what you're selling? Go straight to gold bars, gold coins, or sell by post.
Page reviewed: · Rates update every 60 seconds · Content reviewed by the London Gold Centre precious metals team
How Much Is Your Gold Worth? Start with the Live Price Per Gram
If you're wondering "how much is my gold worth?", start with the calculator below. It gives a practical guide based on live market pricing and the relevant carat value for common items including necklaces, chains, rings, bracelets, earrings, broken jewellery, dental gold, coins, and bars.
Final offers are confirmed after weighing, testing, and checking the net gold content — especially where stones, mixed metals, branded pieces, or bullion premiums may affect the valuation route. The amount shown online reflects what we pay with no hidden fees, and instant same-day payment is available once valuation is complete.
For deeper reference, view the gold price per gram page, read the gold jewellery valuation guide, or compare rates through the silver, platinum, and palladium calculators. UK sellers outside London can also use the bullion by post service.
What This Page Helps You Check
- Live price per gram: compare current guide values across 9ct to 24ct gold.
- Scrap gold estimate: get a realistic starting point before visiting or posting items.
- Hallmarks and purity: understand 375, 585, 750, 916, and 999 marks before valuation.
- Weight-based answers: see how 1g, 10g, and 1 troy ounce translate into guide values.
- Next-step routes: dedicated pages for bars, coins, online selling, or FAQs.
Live Scrap Gold Price Calculator UK — Instant Valuation
Market data: Prices update every minute during trading hours. Bullion markets generally trade from approximately Sunday 23:00 to Friday 22:00 (UK time); outside these hours, the prices shown are the last close.
Enter the weight in grams and karat value of your gold below to receive an instant estimate based on the live gold spot price. Our scrap gold price calculator covers 9ct, 14ct, 18ct, 22ct, and 24ct gold with transparent pay-out values that already include processing costs — the price you see is the price we pay, with no hidden fees.
Whether you are wondering how much your scrap gold is worth or looking for the best price for your gold, our gold value calculator lets you compare gold prices, assess your gold's worth by carat, and make an informed decision before selling to a trusted gold buyer in Hatton Garden or online from anywhere in the UK. Our scrap gold calculator ensures you receive the highest scrap gold value based on real-time London gold market prices.
How Much Is Your Gold Worth?
Enter grams below · Instant estimate · We pay more than high street jewellers
| Purity | Rate per gram | Your weight | Your offer |
|---|---|---|---|
| 9ct Gold | £35.8300 /g |
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| 10ct Gold | £39.8100 /g |
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| 12ct Gold | £47.7700 /g |
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| 14ct Gold | £55.7300 /g |
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| 15ct Gold | £59.7100 /g |
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| 17ct Gold | £67.6700 /g |
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| 18ct Gold | £71.6500 /g |
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| 19ct Gold | £75.6300 /g |
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| 20ct Gold | £79.6100 /g |
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| 21ct Gold | £83.6000 /g |
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| 22ct Gold | £87.5800 /g |
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| 23ct Gold | £91.5600 /g |
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| 24ct Gold | £95.5400 /g |
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All prices shown are estimates based on live market data. The final price paid will reflect the calculator rate at the time of sale at our Hatton Garden office, following testing and verification, provided there are no discrepancies in the live data feed.
Gold Price Today — GBP per Gram
Live market-linked rate · Hatton Garden · Updates every 60 seconds
Live Scrap Gold Price Per Gram UK — Rate Guide by Carat
Use the live calculator above for the current market-linked starting point. The guide below adds the extra context many sellers search for: gold price per gram, carat and hallmark reference, weight examples, and a clear note that final offers depend on testing, purity, and net gold weight.
| Carat | Common mark | Purity | Guide £/g | Approx 10g | Approx 1 troy oz |
|---|---|---|---|---|---|
| 8ct | 333 | 33.3% | £33.49 | £334.88 | £1,041.49 |
| 9ct | 375 | 37.5% | £37.71 | £377.12 | £1,173.23 |
| 10ct | 416 / non-UK Hallmark | 41.6% | £41.84 | £418.35 | £1,301.08 |
| 12ct | 500 | 50% | £50.28 | £502.83 | £1,563.80 |
| 14ct | 585 | 58.5% | £58.83 | £588.31 | £1,829.64 |
| 15ct | 625 | 62.5% | £62.85 | £628.54 | £1,954.75 |
| 18ct | 750 | 75% | £75.42 | £754.24 | £2,345.70 |
| 19ct | 791 / non-UK Hallmark | 79.1% | £79.55 | £795.48 | £2,474.73 |
| 20ct | 833 / non-UK Hallmark | 83.3% | £83.77 | £837.71 | £2,605.29 |
| 21ct | 875 | 87.5% | £88.00 | £879.95 | £2,736.65 |
| 22ct | 916 | 91.6% | £92.12 | £921.18 | £2,864.88 |
| 23ct | 958 | 95.8% | £96.34 | £963.42 | £2,996.24 |
| 24ct | 999 | 99.9% | £100.47 | £1,004.65 | £3,124.47 |
Guide values are for reference only and work best alongside the live calculator and chart above. Where calculator per-carat rows are detected, those guide figures are used first; otherwise the table falls back to the live market reference. Final offers depend on the rate at valuation, confirmed purity, net gold content, and whether a coin or bar carries its own bullion premium.
Sell Scrap Gold in London for the Best Market-Linked Price
The calculator gives a live estimate — here's what happens next. We buy 9ct to 24ct gold including jewellery, coins, bars, broken gold, dental gold, and mixed lots from private sellers and trade customers at our Hatton Garden showroom, and by post from across the UK.
Why Check the Calculator Before Selling
Checking the price per gram before visiting helps you compare offers and understand how purity, weight, and item type affect value. Our calculator already accounts for processing costs, so the estimate you see is a realistic payout figure — not an inflated market rate that drops at the counter.
You can visit without an appointment for a free, no-obligation valuation. The amount shown online is what we pay — no hidden fees — with instant same-day payment by cash or bank transfer.
If you hold investment bars or bullion coins, the dedicated pages may offer a more specific valuation route than plain scrap pricing.
What You Can Check or Sell
- Gold jewellery: necklaces, chains, rings, bangles, bracelets, earrings, pendants, and broken pieces.
- Bullion items: gold bars and coins that need a current live-rate starting point.
- Mixed lots: jewellery with different carats, stones, clasps, or non-gold parts.
- Specialist items: dental gold, inherited jewellery, old scrap, and trade lots.
- London or online: use the estimate before visiting or selling by post.
How Scrap Gold Value Is Calculated
Scrap gold value is estimated from the live 24ct reference price, the item's purity, and its net weight in grams. Two items that weigh the same can differ significantly if one is 9ct and the other is 22ct.
How the scrap gold estimate is calculated
The calculator starts with the current market-linked reference for 24ct gold in pounds per gram. It then applies the fineness associated with the selected carat: common UK marks include 375 for 9ct, 585 for 14ct, 750 for 18ct, 916 for 22ct and 999 for 24ct. The resulting per-gram figure is multiplied by the weight entered in the tool to produce an estimate for that carat.
This explains why two items of the same weight can have different gold values. Carat describes the proportion of gold in the alloy, while the scale records the total item weight. Stones, clasps, springs, solder, fillings and other non-gold parts may reduce the net gold weight used for a final valuation. Items with mixed carats must also be separated and assessed correctly.
The online result is a guide before physical checks. A final valuation depends on confirmed fineness, net gold weight and the market-linked rate at the time of assessment. Recognised bullion coins, investment bars, branded pieces and items with possible collector value may follow a different route from ordinary scrap. The calculator does not replace testing or guarantee a final quote.
When an item's metal or fineness needs confirmation, our Hatton Garden team uses X-ray testing where it is suitable for that type of gold. Acid testing is not the first step: it is used only when necessary, as a last-resort check, or—if a doubt remains—after the customer has agreed to the proposed price and has agreed to the test.
The Calculation Method
- Find the live 24ct reference price. Use the calculator on this page for today's market-linked basis.
- Apply the purity fraction. 9ct = 0.375, 14ct = 0.585, 18ct = 0.75, 22ct = 0.916, 24ct = 0.999.
- Multiply by net gold weight. Stones, settings, solder, or mixed-metal parts may reduce the payable weight.
- Confirm the route at valuation. Bars, coins, and branded pieces may follow a different route from plain scrap.
live 24ct £/g × purity fraction × net weight (g) = estimated value
Purity Factors & Worked Example
These quick factors show why value per gram changes so much between carats.
Worked Example
Using today's detected 18ct guide rate, 10g of 18ct gold is roughly calculated from the live rate before final testing, stone removal, and any route-specific adjustments.
What Can Change the Final Offer?
The calculator gives a starting estimate. The final figure may adjust based on purity confirmation, net gold weight after removing stones or fittings, live market movement between enquiry and valuation, and whether the item follows a bullion or scrap route.
What Affects the Gold Price Today
Gold prices move because of global market conditions, currency shifts, inflation, and investor demand. Understanding these drivers helps explain why the calculator rate changes from day to day.
Economic & Geopolitical Uncertainty
Gold is widely held as a safe-haven asset. When inflation, geopolitical tensions, or recession concerns shake confidence in other assets, demand for gold tends to rise.
US Dollar & Exchange Rates
Gold is globally quoted per troy ounce via the LBMA. Currency shifts between USD and GBP directly influence the UK price per gram shown on this page.
Supply, Demand & Investor Flows
Mining output, jewellery demand, central-bank activity, and investor sentiment all affect day-to-day pricing. Reduced supply alongside rising demand naturally pushes prices higher.
UK Gold Hallmarks & Purity Guide
Hallmarks identify purity at a glance. Common UK fineness marks — regulated by the British Hallmarking Council — include 375, 585, 750, 916, 990, and 999. If your item is unmarked or hard to read, it can still be tested before any offer is confirmed.
| Mark | Carat | Purity | What it tells you |
|---|---|---|---|
| 375 | 9ct | 37.5% | Common on everyday UK jewellery. |
| 585 | 14ct | 58.5% | Often seen on imported or modern pieces. |
| 750 | 18ct | 75.0% | Higher-purity jewellery and premium items. |
| 916 | 22ct | 91.6% | High-purity, strong per-gram value. |
| 990 | 24ct | 99.0% | Near-pure gold, more common on bars. |
| 999 | 24ct | 99.9% | Fine gold for investment bars and bullion. |
How to Read Gold Hallmarks
- Where to look: inside rings, on clasps, earring posts, or bar packaging and certificates.
- Carat to purity: divide the carat by 24. Example: 18 ÷ 24 = 75%.
- Colour vs value: white, rose, and yellow gold are valued by gold content, not colour.
- Unmarked items: non-hallmarked gold can still be tested before valuation.
- Imported jewellery: marks vary internationally, so testing is useful if unsure.
Need Help Identifying a Gold Item?
If your hallmark is worn, unusual, or missing, the team can still help after checking the item. This is especially useful for mixed lots, inherited pieces, and dental gold.
Gold Purity Testing & Selling Options
Before an offer is confirmed, items are weighed, inspected, and tested so the correct purity and valuation route can be applied. This matters most for mixed lots, jewellery with stones, and items that are not clearly marked.
How Items Are Checked
Depending on the item, valuation may include visual inspection, hallmark checking, weighing, and non-destructive XRF testing to confirm metal type and purity without damage. Electronic testing, ultrasound, acid testing, or density checks may also be used where appropriate.
Our melting laboratory enables precise refining where needed, so the final valuation reflects recoverable gold content based on the current market rate.
Sell in Store or Sell by Post
Sell in Store
Best for walk-ins, mixed lots, and face-to-face support in Hatton Garden.
- Free valuation, zero risk: bring items and ID — no obligation, no charge.
- No-obligation offer: decide after the offer is clear, with no hidden fees.
- Instant same-day payment: cash or bank transfer once you accept.
Sell by Post
Best for UK sellers outside London or anyone who prefers to start remotely.
- Contact first for guidance: especially for higher-value or unusual items.
- Checked on receipt: valuation after delivery, testing, and route confirmation.
- Nationwide selling: move from live rates to payout without visiting London.
Clear Process, Practical Support
Start with the live calculator, bring or post your items, have them checked, then decide once the route and offer are clear.
Frequently Asked Questions
Quick answers about estimating value, understanding purity, comparing rates, and choosing the right selling route.
How much is 9ct gold worth today?
9ct gold contains 37.5% pure gold, so its guide value per gram moves with the live 24ct rate. Use the calculator above for the current 9ct price, then allow for stones, fittings, and final testing.
How much is 18ct gold worth per gram today?
18ct gold is 75% pure, so its per-gram value sits between 14ct and 22ct. Check the live rate table above for today's 18ct figure, then multiply by your item's weight in grams.
How much is 22ct gold worth per gram today?
22ct gold is 91.6% pure, so it sits close to 24ct in value. The final offer depends on net weight, testing, and whether the item follows a plain scrap or bullion route.
How is the scrap gold price calculated?
Multiply the live 24ct reference price by the purity fraction for your carat, then multiply by net weight in grams. Example: 18ct uses 0.75, while 9ct uses 0.375. The calculator handles this automatically.
What do 375, 585, 750, 916 and 999 mean on gold?
These fineness marks show how much pure gold is in the alloy: 375 = 9ct, 585 = 14ct, 750 = 18ct, 916 = 22ct, 999 = fine 24ct. They're typically found inside rings, on clasps, or on bullion packaging.
How many grams in a troy ounce of gold?
One troy ounce equals 31.1035 grams. Gold is quoted globally per troy ounce, then converted to a UK price per gram.
How much is 1 gram of gold worth in the UK?
It depends on purity. One gram of 24ct gold is worth more than 9ct because it contains more pure gold. Use the calculator for a live figure at the correct carat.
How much is 10 grams of gold worth?
Multiply the per-gram rate for the correct carat by 10. Stones or non-gold fittings may reduce the final payable weight.
How much is my gold ring worth?
Value depends on carat, weight, any stones or non-gold fittings, and whether it has collectible value beyond scrap. Start with the calculator, then allow for testing at valuation.
Why is scrap gold cheaper than the spot price?
Spot price reflects near-pure market gold. Scrap jewellery contains alloys and may need testing, stone removal, or refining. Buyers price the gold they can actually recover.
Who pays the most for scrap gold?
We offer some of the highest payouts in the UK for scrap gold. Our calculator uses live market-linked rates so you can check what your items are worth before committing.
How do I calculate purity percentage?
Divide the carat by 24. For example: 9ct = 37.5%, 14ct = 58.5%, 18ct = 75.0%, 22ct = 91.6%. This determines the correct per-gram rate.
How accurate is the online calculator vs in-store price?
The calculator gives a live market-linked guide. The final in-store figure may adjust slightly for purity confirmation, net gold weight after stones are removed, and route-specific factors. For plain scrap gold, the two are closely aligned.
Do coins or bars sell for more than scrap value?
Often yes. Investment bars and certain bullion coins may follow a dedicated valuation route where brand, weight, and market premium matter. Check the relevant service page alongside the scrap calculator.
Is white or rose gold priced differently from yellow gold?
Colour alone doesn't determine melt value — gold content does. White, rose, and yellow gold of the same carat have similar gold value, though the alloy mix may need testing.
Do you buy non-hallmarked gold?
Yes. Non-hallmarked items can be tested before any offer is confirmed. A missing hallmark doesn't mean the item has no gold value.
Can I sell dental gold?
Dental gold may contain gold alongside other metals, so testing is important. Contact the team first if you have mixed dental items.
What if my jewellery contains stones?
Stones and non-gold parts affect payable weight. Let the team know beforehand so the right assessment route can be used, especially for diamond or gemstone jewellery.
Can I visit without an appointment?
Walk-ins are welcome during opening hours. For high-value or unusual lots, a quick call first ensures the right team is ready.
How quickly is payment made?
Once testing is complete and you agree to proceed, payment is available same-day by cash or bank transfer.
Do I need ID to sell gold?
Yes — bring valid identification. You can also use the ID submission page in advance.
How long does postal processing take?
Timing depends on parcel contents, delivery, and testing. Contact the team before sending high-value or unusual items to confirm the best route.
What are the official UK gold hallmarks?
Official fineness marks: 375 (9ct), 585 (14ct), 750 (18ct), 916 (22ct), and 999 (24ct). Always check for the hallmark to verify purity before selling.
How much is scrap gold worth by weight in grams?
Multiply your item's weight by the correct per-gram carat price from the live rate table. Example: 20g of 9ct = the 9ct per-gram rate × 20. The calculator handles this instantly for every carat.
Can I sell gold by post from outside London?
Yes. The bullion by post service lets UK sellers send gold securely for valuation. Use the calculator first, then contact the team for postal guidance.
Ready to Check Your Gold Value?
Whether you're selling 9ct, 14ct, 18ct, 22ct, or 24ct gold — use the calculator, visit Hatton Garden, or start online from anywhere in the UK. From live rates to instant payment through a clear, practical process.