9ct gold (375)

9ct gold (375): what it is and how it is valued

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9ct gold is 375 gold: 37.5 per cent pure gold, the rest usually silver and copper. It is the lowest standard that can be hallmarked as gold in the UK. When you sell 9ct by post, GoldPaid values it on the fine gold it actually contains, confirmed by XRF, against the live precious-metal market on the day.

Read our reviews on TrustpilotFree Special Delivery label, usually within 30 minutesWe aim to pay within one working hour of acceptancePurity tested in-house by X-ray (XRF)Free return if you say no
How is 9ct gold valued when you sell it by post?9ct gold is 37.5 per cent pure. GoldPaid values a 9ct piece on the fine gold it actually contains, confirmed by XRF and weighed to 0.01g, against the live precious-metal market on the day your items are tested. You receive a written offer with the figure for each item and no obligation to accept. Final offers depend on inspection, item weight, purity, hallmarks, stones, non-gold components, condition and the live precious-metal market.
Diagram of UK gold fineness marks: 375 is 9ct (37.5% gold), 585 is 14ct, 750 is 18ct, 916 is 22ct, 990 is 99.0% gold and 999 is 24ct

Gold spot price per gram today, by carat

Gold spot price today (4 October 2026): fine gold was £100.87 per gram, about £3,138 per troy ounce. At that spot price the metal content of 9ct gold is worth £37.83 a gram and 18ct £75.66 a gram. These are spot values of the metal content, not a GoldPaid buying price: any buyer pays less than spot, because refining, assay and margin come out of the metal value. GoldPaid publishes no buying rates; your written offer is set after XRF testing your own items.

Spot value of the fine gold in one gram of each common gold fineness, 4 October 2026. Spot price of fine gold £100.87 per gram, converted from the US dollar spot price per troy ounce at the day's exchange rate. Market data, not a buying price. 12ct and 15ct were British standards until 1932; 875 (21ct) is not a UK hallmarking standard.
CaratHallmarkFine gold contentSpot value of metal content, per gram
9ct37537.5%£37.83
12ct50050%£50.44
14ct58558.5%£59.01
15ct62562.5%£63.05
18ct75075%£75.66
21ct87587.5%£88.26
22ct91691.7%£92.46
24ct99999.9%£100.77

Got the piece in front of you? Get a figure for it

375 is 9ct gold: 375 parts pure gold in every 1,000.

Send a photo of the piece and any stamp on WhatsApp. We will reply with a rough estimate for it. No obligation, and nothing needs posting.

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No WhatsApp? Call 07944 014111, 8am to 9pm.

Not sure what the mark says? Use the hallmark lookup. Final offers depend on inspection, item weight, purity, hallmarks, stones, non-gold components, condition and the live precious-metal market.

What does the 375 mark mean?

What is 9ct gold?9ct gold is 375 fineness: 37.5 per cent pure gold, the rest usually silver and copper. It is the lowest standard that can legally be described as gold in the UK. On 4 October 2026, at a spot price of £100.87 per gram of fine gold, the gold in one gram of 9ct was worth £37.83: a market value, not a buying price. A piece is valued on the fine gold it contains, not on the whole item weight.

How the UK carats compare by pure gold content:

CaratFinenessPure gold %
9ct37537.5%
14ct58558.5%
18ct75075.0%
22ct91691.7%
24ct99999.9%
GoldPaid does not publish a public buying rate. Each piece is valued after an XRF test confirms the purity and weight of your own items, and every figure appears on your written offer. For more on the gold price and selling by post, see the gold price and selling by post. For signed jewellery or other collectable pieces, send a photo on WhatsApp first and we will tell you how we would value them before you post anything.

How a 9ct offer is worked out

Three measured facts decide the figure: the purity confirmed by XRF rather than read off the stamp, the payable weight once anything that is not gold is weighed out, and the live precious-metal market on the day your items are tested. 9ct is valued on its 37.5 per cent fine-gold content, so a hollow or stone-set piece is valued on the metal actually there, not on its gross weight.

Small 9ct pieces add up, so a drawer of odd earrings, broken chains and a worn band is worth sending together. Kitchen scales reading to the nearest gram are enough to sense-check whether posting is worthwhile; the written offer follows the XRF test. Typical weights help set expectations:

PieceTypical weight
9ct plain wedding band3 to 5 g
9ct 20" curb chain6 to 10 g
9ct Oxford signet ring12 to 18 g
Heavy 9ct Cuban chain40 to 70 g

For the full method with a worked example, see how we value gold, and for a rough estimate before you post, send a photo on WhatsApp.

What moves a 9ct gold offer

  • The precious-metal market. Gold trades on a world market that moves every trading day, and a 9ct offer moves with it. Your written offer reflects the market on the day your items are tested.
  • The pound against the dollar. Gold is priced internationally in US dollars, so the sterling value of a given amount of gold shifts with the exchange rate.
  • Margin. A postal buyer works to a margin. How GoldPaid thinks about margin is set out on our position.
  • Alloy variance. A stamp of 375 usually assays close to 375, but solder joints and old repairs can push a specific piece slightly above or below. XRF measures what is there.
  • Item-specific deductions. Stones, springs, base-metal clasps and hollow fill come out of the payable weight, itemised on the written offer.

When is a good time to sell 9ct gold?

We do not predict the market and neither does anyone honest in this trade. What we can say is that the mechanics are transparent: the market moves, the assay tells the truth about what a piece is, and the written offer shows the working. For more on the gold price and selling by post, see the gold price and selling by post, and the market outlook piece covers the honest limits of any timing call.

Common questions

How much is 9ct gold per gram in the UK today?

9ct gold is 37.5% pure gold (375 parts per thousand). On 4 October 2026, at a spot price of £100.87 per gram of fine gold, the gold in one gram of 9ct was worth £37.83, so a 10 g 9ct chain held about £378.30 of gold at spot. Any buyer pays less than spot. GoldPaid publishes no buying rate: your written offer follows an XRF test of your own items.

Is 9ct gold worth selling?

Yes. Small 9ct pieces add up, and a drawer of odd earrings, broken chains and a worn band is worth sending together. GoldPaid values each piece on its confirmed gold content, and the written offer follows the XRF test. Kitchen scales are enough to sense-check whether posting is worthwhile.

Do you value scrap and wearable 9ct the same?

Yes. GoldPaid pays on the confirmed gold content, not on whether a piece is intact. A broken 9ct chain and an intact 9ct chain of the same weight produce the same offer.

What if my 9ct piece has stones?

The stones are separated from the payable weight and either handled under our written diamond-and-gemstone policy or returned with the piece if you decline. Nothing is unset without your written instruction.

How does GoldPaid compare to a high-street buyer?

Honestly, it depends on the buyer and the day, so the useful answer is not a percentage. A high-street shop carries premises and staff a postal service does not, and the difference varies. Rather than quote a figure at you, we set five UK postal buyers’ own published terms side by side, each one quoted as written and dated, in UK gold buyer terms compared. Read it and check us against it.

Not the question you had? The full GoldPaid FAQ covers the rest, from postal cover and ID checks to what happens if you decline the offer.

Get a free Royal Mail label by email

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Show it at any Post Office counter and they print the label.

Your details for the label

Last step

Your label is sent here, usually within 30 minutes (8am to 9pm, every day).

Your address prints on the label, and anything you decline comes back to it. UK addresses only.

Only used if your email bounces.

No obligation. Free tracked return if you decline. We aim to pay within one working hour of acceptance.

  • Free. No obligation to sell after you see the written offer.
  • Anything you decline comes back by Royal Mail Special Delivery at our cost.
  • Before we pay, we ask every seller for a photo of their passport or driving licence, to check identity and ownership.

Rather ask a question or send a photo first? Message us on WhatsApp.

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Send a photo for a rough 9ct estimate

Message 07944 014111 on WhatsApp with a photo and any weights, and we’ll come back with a rough estimate. Free tracked label if you want to post; free tracked return if you decline.

No obligation. Free tracked return if you decline. We aim to pay within one working hour of acceptance.