Platinum Price Calculator UK – Live Platinum Price Per Gram Before You Sell
Check the live platinum rate in the UK and estimate the value of scrap platinum jewellery, Pt950 rings, platinum bars, platinum coins, and platinum grains before you sell. The calculator below helps answer common questions such as how much is platinum worth, platinum price per gram UK, scrap platinum price UK, and 1g platinum price in one clearer, more useful page.
Page reviewed: 26 March 2026 • Rates update every 60 seconds • Content reviewed by the London Gold Centre precious metals team
Why use this Platinum Price Calculator UK page before you sell?
Platinum sellers usually want the same answers first: what is the live platinum price UK, how does that turn into a realistic platinum value per gram, and what changes the final offer for jewellery, rings, bars, coins, or bullion.
How the platinum calculator helps
The live calculator gives you a fast starting point for platinum price per gram UK, platinum price per ounce, and scrap platinum value before you sell. It is especially useful for platinum jewellery, engagement rings, wedding bands, broken pieces, bars, bullion coins, and mixed white-metal items that need a clearer valuation route.
The figure shown is a guide based on live market-linked pricing. Final offers are confirmed after testing, purity verification, and net metal checks — for example where stones, springs, solder, mixed-metal mounts, or bullion product type change the route. That distinction is important for anyone searching how much is a platinum ring worth or platinum scrap price UK.
For deeper reference, you can also read our Pt950 vs Pt900 platinum guide, check the ID & paperwork checklist, or compare the gold, silver, and palladium calculators if you are selling mixed precious-metal items. Looking to buy platinum instead? Visit our platinum bullion shop.
Live Platinum Price Calculator UK — Instant Scrap Platinum Valuation
Enter the weight in grams and select the platinum purity below to get an instant estimate based on the live platinum price per gram UK. Our calculator covers Pt999.5 fine platinum, Pt950, Pt900, and Pt850 — the amount shown is what we pay, with no hidden fees, deductions, or commissions.
How Much Is Your Platinum Worth?
Enter grams below · Instant estimate · We pay more than high street jewellers
| Purity | Rate per gram | Your weight | Your offer |
|---|---|---|---|
| Pure Platinum | £31.7200 /g |
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| 95% Platinum | £30.1300 /g |
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| 90% Platinum | £28.5400 /g |
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| 85% Platinum | £26.9600 /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.
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1oz Fine Platinum Coins £1,052.11
Includes Platinum Britannias, Canadian Platinum Maple Leafs, and other 1oz platinum coins from recognised mints. If you are searching for Platinum Britannia price today, sell platinum coins UK, or 1oz platinum coin value, this row shows the current live payout based on the platinum spot price per gram.
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1oz Fine Platinum Bar £1,052.11
Covers 1oz platinum bars from LBMA-approved refiners including PAMP Suisse, Umicore, Metalor, Heraeus, and Valcambi. Sellers checking the 1oz platinum bar price UK can use this as a live market-linked guide. Bars with original assay cards and intact packaging typically attract the tightest spread to spot.
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50g Fine Platinum Bar £1,691.50
A mid-weight platinum bar commonly held by private investors. Payout reflects the live platinum price per gram UK at fine purity. Recognised refiner branding and original certificates help confirm authenticity and support a stronger offer.
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100g Fine Platinum Bar £3,383.00
One of the most commonly traded platinum bar sizes. If you are looking to sell a 100g platinum bar UK, this figure reflects the current market-linked payout. LBMA-approved bars from major refiners are accepted with or without original packaging.
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500g Fine Silver Bar £16,915.01
The standard institutional platinum bar. Sellers searching for 1kg platinum bar price UK or sell platinum kilo bar can use this as the current live benchmark. LBMA-approved bars from recognised refiners are preferred, but non-branded kilo bars can be tested, verified, and valued on the day.
Platinum Price Today — GBP per Gram
Live market-linked rate · Hatton Garden · Updates every 60 seconds
Platinum Purity, Hallmarks and the Marks Sellers Most Often See
If you are checking platinum price per gram UK or trying to work out how much a platinum ring is worth, start with the hallmark. For most UK sellers, the quickest clues are the fineness mark, the item weight, and whether the piece is pure platinum or a mixed white-metal setting.
Start with the hallmark, then confirm with testing
The most common UK jewellery marks are Pt950 and Pt900. A Pt950 mark means the item is 95% platinum, while Pt900 means 90% platinum. That difference matters because higher fineness usually means more pure platinum per gram and a stronger starting value.
You may also see an assay-office symbol alongside the sponsor’s mark — for example the leopard’s head for London. Hallmarks are an excellent first step, but they do not replace testing where items are worn, altered, unmarked, or built from more than one metal. Platinum heads with white-gold shanks are one common example.
For a deeper breakdown, read our Pt950 vs Pt900 platinum jewellery guide. It explains hallmark reading, XRF testing, and why platinum vs white gold is one of the most important checks for ring sellers.
Common platinum hallmarks and what they mean
| Hallmark / fineness | Approx. purity | Common examples | Why it matters |
|---|---|---|---|
| Pt999.5 / 999 | 99.95%–99.9% | Investment bars, selected bullion products | Usually the closest match to the live platinum spot context before any product-specific route is applied. |
| Pt950 | 95.0% | Wedding rings, engagement rings, fine jewellery | One of the most common seller searches because Pt950 often carries a higher metal value than Pt900. |
| Pt900 | 90.0% | Older jewellery and some mixed settings | Still valuable, but the pure platinum content per gram is lower than Pt950. |
| Pt850 and lower | 85.0% or below | Imported, repaired, older or specialist items | Needs careful checking so the calculator estimate reflects the correct platinum content. |
Helpful platinum guides and next steps
How Platinum Value Is Calculated – Weight, Purity and Live Rate
The live platinum price above is the market context. Your real seller quote is built from purity, net weight, item type, and the testing needed to confirm what is actually platinum.
Simple platinum value formula
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Worked example: 10g Pt950 ring
10 × 0.95 × the live platinum rate gives the starting metal value before stones, solder, springs, or mixed-metal parts are deducted. -
Worked example: 1oz Pt999.5 bar
31.1 × 0.9995 × the live platinum rate gives the metal-value guide before any bullion-specific route or product context is applied. -
Why ring estimates vary
Anyone searching how much is a platinum ring worth usually needs more than a raw spot figure. Rings often include diamonds, settings, resized sections, or white-gold parts that must be checked separately.
What can change the final platinum offer?
- Net metal weight: stones, non-metal fittings, and some internal parts do not count as platinum weight.
- Tested purity: hallmark and real metal content usually align, but repairs, wear, or mixed construction can change the outcome.
- Platinum vs white gold: mixed settings need non-destructive testing so each metal is valued correctly.
- Bars, coins and bullion: recognised products can follow a dedicated bullion route rather than a plain scrap route.
- Brand and documentation: refiners or mints such as PAMP, Valcambi, Metalor, Johnson Matthey, and The Royal Mint are familiar product formats, but unsealed items can still be tested and assessed.
Platinum Price Per Ounce UK – Troy Ounce Conversion
Many sellers and investors check the platinum price per ounce alongside the per-gram rate. One troy ounce equals 31.1035 grams, which is the standard unit used in precious-metal markets worldwide.
How to convert platinum price per gram to per ounce
The live calculator above shows the platinum price per gram UK. To find the platinum price per ounce, multiply that figure by 31.1035. For example, if platinum is trading at £30 per gram, one troy ounce would be approximately £933.
This conversion is especially useful for anyone selling 1oz platinum bars or 1oz platinum coins, where the bullion weight is already quoted in troy ounces. The live chart in the middle of this page also shows the current per-ounce spot price alongside the per-gram rate.
Quick platinum weight reference
- 1 gram: a useful unit for scrap jewellery, small rings, and per-gram rate comparisons.
- 10 grams: a common weight for heavier rings, bracelets, and small bar formats.
- 1 troy ounce (31.1g): the standard unit for bullion bars and coins. Most 1oz platinum products weigh 31.1035g.
- 100 grams: common investment bar weight. Multiply the per-gram rate by 100 for a quick estimate.
- 1 kilogram (1,000g / 32.15 troy oz): the largest standard bar format. Multiply the per-gram rate by 1,000.
Platinum vs Gold – How Do Prices Compare?
Platinum has historically traded above gold, but in recent years it has generally been priced below it. Understanding the relationship helps sellers make better timing decisions.
Why is platinum cheaper than gold right now?
Several factors have pushed the platinum price below gold since around 2015: reduced demand from the automotive diesel sector (a major industrial consumer of platinum), shifting investor preference toward gold and palladium, and lower speculative interest compared to gold's safe-haven reputation.
That said, platinum remains one of the rarest precious metals — roughly 30 times rarer than gold by annual mine supply. Its industrial applications in catalytic converters, hydrogen fuel cells, medical devices, and laboratory equipment continue to support long-term demand.
For sellers, the key takeaway is simple: always check the live platinum rate separately rather than assuming it follows gold. Use our gold price calculator to compare both metals side by side before making a decision.
Platinum vs gold at a glance
| Factor | Platinum | Gold |
|---|---|---|
| Common jewellery purity | Pt950 (95%) | 18ct (75%), 9ct (37.5%) |
| Density | 21.45 g/cm³ (heavier) | 19.32 g/cm³ |
| Annual mine supply | ~170 tonnes | ~3,600 tonnes |
| Main industrial use | Automotive catalysts, hydrogen fuel cells | Electronics, dentistry |
| Current price relationship | Platinum generally trades below gold — check both live rates before selling. | |
How to Sell Platinum in Store or by Post
Most sellers follow the same process: check the live platinum price, identify the hallmark, estimate the weight, choose the right selling route, and approve the quote only once everything is clear.
- 1 Check the live platinum rate Use the calculator above for a practical platinum price per gram starting point.
- 2 Find the hallmark Look for Pt950, Pt900, Pt999.5 or a related mark before requesting a valuation.
- 3 Estimate net weight Note stones, springs, or mixed-metal parts that can affect the final platinum value.
- 4 Choose store or post Visit Hatton Garden or use Royal Mail Special Delivery from elsewhere in the UK.
- 5 Approve the tested quote The sale only completes once the checked offer and route are confirmed with you.
Sell platinum in store at Hatton Garden
- Best for face-to-face support: useful for platinum jewellery, rings, mixed white metals, bars, coins, and higher-value lots.
- Bring the right documents: photo ID, proof of address, and payment details that match your verified name help avoid delays.
- Testing and weighing happen first: purity, net metal content, and item route are explained before any sale is completed.
- Location: 5 Hatton Garden, London EC1N 8AA — a well-known jewellery and precious-metals district for in-person valuations.
Sell platinum by post from anywhere in the UK
- Best for remote sellers: ideal if you are outside London or want to start from home.
- Use a secure postal route: Royal Mail Special Delivery is the usual tracked and insured choice for precious metals.
- Keep your paperwork ready: include or be ready to supply ID and address documents, and keep the tracking receipt.
- Useful for platinum rings, scrap, bars, coins and mixed lots: higher-value or unusual items are worth discussing with the team first.
Common Platinum Items We Assess
The page is built for real platinum-selling intent, whether you are comparing scrap platinum price UK, selling a platinum ring, or checking the live value of recognised bullion products before visiting Hatton Garden.
Platinum jewellery & rings
Pt950 and Pt900 wedding bands, engagement rings, chains, bracelets, earrings, pendants, broken pieces, and unwanted jewellery are among the most common platinum items sellers bring in.
Selling a platinum ring? Engagement rings and wedding bands often contain diamonds or mixed-metal settings. The platinum is valued by net metal weight and purity after stones and non-platinum parts are accounted for. Second-hand, used, and inherited platinum rings are all accepted — condition does not affect the metal value. If you are searching sell platinum ring or second hand platinum rings, this is the right starting point.
Bars, coins & recognised bullion
1oz bars, larger platinum bars, bullion coins, and products from recognised refiners or mints often follow a clearer bullion route once weight, purity, and product type are checked.
Looking to buy platinum bars or coins instead? Visit our platinum bullion shop.
Mixed, unmarked or specialist items
Platinum grains, workshop material, unmarked white metals, or mixed platinum-and-white-gold settings can still be valued properly with testing rather than guesswork.
Ready to check your platinum value?
Use the live platinum calculator above, then choose the route that suits you best: visit Hatton Garden for an in-person valuation, or start the secure postal process from anywhere in the UK.
Frequently Asked Questions About Platinum Price, Hallmarks and Selling Routes
These answers are written for the practical questions UK sellers ask most often when comparing the platinum price UK, platinum ring value, bullion routes, hallmarks, ID checks, and the difference between a live market rate and a real seller quote.
What is the difference between the live platinum price and the final offer?
The live platinum price is the market benchmark used to build an estimate. Your final offer is confirmed after purity, net metal weight, item type, and any mixed-metal or stone deductions are checked. That is why a ring, a bullion bar, and a mixed white-metal setting can follow different platinum valuation routes even on the same day.
Can I sell Pt950 or Pt900 platinum?
Yes. Pt950 and Pt900 are both common platinum standards in UK jewellery. Pt950 usually contains more pure platinum per gram, so it often starts from a stronger guide value than Pt900, but both can be checked and valued properly.
What hallmarks should I look for on platinum jewellery?
The marks most sellers see are Pt950 and Pt900, sometimes alongside a sponsor’s mark and an assay-office symbol such as the London leopard’s head. If the mark is worn, missing, or unclear, testing is the safest way to confirm the actual platinum content.
How do you tell platinum from white gold?
Platinum and white gold can look similar, especially in rings and stone settings. Non-destructive XRF testing helps confirm the alloy quickly so each metal is valued correctly. This matters for anyone comparing platinum vs white gold or selling a mixed setting.
How much is a platinum ring worth?
A platinum ring’s value depends on the hallmark, the net platinum weight, the live platinum rate, and whether stones, springs, or mixed-metal sections need to be removed from the metal calculation. A Pt950 ring will usually start from a different guide value than a Pt900 ring of the same weight.
Do stones, diamonds or mixed-metal parts count in the weight?
Not as platinum weight. The metal offer is based on the platinum content only, so stones, non-metal fittings, and some mixed-metal sections are checked separately. Where appropriate, jewellery or stones can be discussed on their own route.
Do I need ID to sell platinum in the UK?
In practice, reputable buyers usually ask for photo ID and proof of address, and verified payment details help keep the transaction compliant and secure. The exact checks depend on the transaction, but having the documents ready makes the process smoother.
Do you buy platinum bars, coins and grains from recognised refiners or mints?
Yes. Recognised platinum bars, bullion coins, and platinum grains can be assessed alongside jewellery and scrap. Product type, weight, purity, and brand recognition may influence whether the item follows a bullion route or a plain scrap route.
Can I sell platinum by post from anywhere in the UK?
Yes. Many sellers outside London use the postal route. Royal Mail Special Delivery is the usual starting point because it is tracked and insured for valuables. Keep your paperwork ready and the tracking receipt, and contact the team first if the lot is unusual or high value.
How is payment arranged after I approve the quote?
The payment route and timing depend on the transaction, the verification checks completed, and current policy. London Gold Centre confirms the available route with you before the sale is completed, so you know exactly how the approved transaction will be handled.
What is the platinum price per gram in the UK today?
The live platinum price per gram UK is shown in the calculator at the top of this page and updates every 60 seconds from the London spot rate. The per-gram figure is the most practical starting point for valuing scrap jewellery, rings, and small items.
How much is platinum worth per ounce?
One troy ounce of platinum equals 31.1035 grams. To find the current platinum price per ounce, multiply the live per-gram rate shown in the calculator by 31.1035. This is especially useful for sellers of 1oz platinum bars and bullion coins where the weight is already quoted in troy ounces.
Is platinum worth more than gold?
Historically platinum traded above gold, but since around 2015 it has generally been priced below it. Reduced automotive diesel demand and stronger safe-haven flows into gold have shifted the relationship. The key takeaway for sellers: always check the live platinum rate separately rather than assuming it tracks gold. You can compare both metals using the gold price calculator.
Can I sell a second-hand or used platinum ring?
Yes. Second-hand, inherited, unwanted, and damaged platinum rings are all accepted. The metal value is based on purity and net platinum weight, not cosmetic condition. Engagement rings, wedding bands, dress rings, and broken pieces can all be assessed. Stones and non-platinum parts are accounted for separately.
What is the scrap platinum price per gram today?
The scrap platinum price per gram is derived from the live spot rate shown in the calculator at the top of this page, adjusted for purity. For Pt950 jewellery, the scrap value per gram is approximately 95% of the live spot rate. For Pt900, it is approximately 90%. Final scrap offers are confirmed after testing.
Need help before you sell?
Contact the team if you want help with hallmarks, platinum purity, mixed-metal items, postal selling, or deciding whether a bar, coin, or ring should follow a bullion or scrap route.