How Much Is 4.5g of 18K Gold Worth in pounds?

4.5 grams of 18K gold is worth £330.31 in pounds today

(Based on spot $4,014/oz · 1 USD = £0.7584 · Updated June 26, 2026)

Estimates convert USD spot using a live exchange rate. Not financial advice, not a purchase offer, and not a guarantee of what any buyer will pay.

In the light range, one clasp or stone setting can skew the total—estimate gold-only weight for a cleaner melt benchmark.

Light totals often match one UK wedding band, a fine chain, or a pair of stud earrings—common in 9K and 18K on the high street.

Adjacent gram pages (GBP):4g5g →

At live spot converted to pounds, 4.5 g of 18K gold has a rough melt value of about £330.31. This is not a purchase offer—just an estimate from spot × weight × purity × exchange rate.

View in USD ($) →In EUR (€) anzeigen →View in CAD (C$) →View in AUD (A$) →

18K (750) is the premium UK fineness for many fine jewellers—common on engagement rings and higher-end pieces.

Weighing & sorting tips

  • If a clasp tests differently from the chain, weigh or quote each part separately.
  • If your pieces are mixed-karat, weigh each karat separately; otherwise a blended estimate can mislead you.

Gold Value Calculator

£/troy oz

Adjust this price to project a future value. 24K per troy oz.

Total gold value£330.30

Current 18K price£73.40/gram£2283.00/oz

Est. offer at%:£165.15

Formula: weight × karat multiplier × spot price. 14K = 0.585, 18K = 0.75, 10K = 0.417.

USD spot converted to pounds at live exchange rates. Same basis as the estimates on this page. Adjust weight, unit, or karat.

Calculate exact pawnbroker payout →

Melt value by karat (4.5 g, GBP)

Same weight, different purity—use this to sanity-check whether your item's stamp matches your expected value in pounds.

KaratMelt (£)
9K£165.17
10K£183.50
14K£256.90
18K£330.31
22K£403.71
24K£440.40

What uk buyers might pay (typical ranges)

Dealers pay a share of melt. Below uses the same total melt as this page (£330.31). On light weights, the % of melt matters more than the channel—get two £ quotes anchored to the same spot day. Not a quote.

Buyer typeTypical % of meltEst. offer (£)
Pawnbroker5070%£165.15£231.21
Local gold buyer / jeweller6580%£214.70£264.24
Online / mail-in buyer8092%£264.24£303.88
Refinery (bulk / high volume)8895%£290.67£313.79

Ranges are typical experience bands; local buyers vary. Not a quote.

How we calculate melt in pounds

USD spot per gram × live USD→GBP rate (1 USD = £0.7584). For 18K: 4.5 g × £73.40/g ≈ £330.31 before any buyer haircut. 18K price hub.

Related links

FAQ

How much is 4.5 grams of 18K gold worth in pounds?
4.5 grams of 18K gold is worth about £330.31 melt in pounds at today's gold price of $4,014/oz (1 USD = £0.7584). Typical uk buyers pay £165.15–£231.21 (pawnbroker) or £264.24–£303.88 (online).
Is £330.31 what uk buyers will pay?
Usually not. Many buyers pay a percentage of melt—often roughly 50–70% at pawnbrokers for quick cash. Online or mail-in buyers may pay a higher share. Always compare at least two quotes in pounds.
Should I remove stones or clasps before weighing?
If you can do it safely, weigh gold-only metal; stones and some clasps add weight but often don't increase scrap payout. If you can't remove them, ask how the buyer deducts non-gold parts.
Does 18K gold price in GBP change every day?
Spot gold and the USD→GBP rate both move. Our pages refresh on a regular schedule. Use the same spot and rate basis as our calculators when comparing offers.