How Much Is 100g of 18K Gold Worth in Pounds (£)?
100 grams of 18K gold is worth £7,779.58 in pounds today
(Based on spot $4,331/oz · 1 USD = £0.7449 · Updated June 16, 2026)
- Melt value
- £7,779.58
- Pawnbroker (typical)
- £3,890–£5,446
- Mail-in buyer (typical)
- £6,224–£7,157
Estimates convert USD spot to GBP using a live exchange rate. Not financial advice, not a purchase offer, and not a guarantee of what any UK buyer will pay.
Heavier pieces often include hollow construction. Two similar-looking chains can differ by many grams—trust the scale.
For heavier totals, established mail-in buyers or refineries may beat walk-in pawnbroker rates on percentage of melt.
18K (750) is the premium UK fineness for many fine jewellers—common on engagement rings and higher-end pieces.
Adjacent GBP pages: ← 75g150g →
At the live spot converted to pounds, 100 g of 18K gold has a rough melt value of about £7,779.58 (£77.80/gram). USD equivalent: $10,444.00 (1 USD = £0.7449).
Weighing & sorting tips (UK)
- If your pieces are mixed fineness, weigh each stamp separately—375, 585, and 750 should not share one total.
- Hollow construction is common—trust grams, not how 'solid' the piece looks.
Gold Value Calculator
Adjust this price to project a future value. 24K per troy oz.
Total gold value£7779.00
Current 18K price • £77.79/gram • £2419.54/oz
Formula: weight × karat multiplier × spot price. 14K = 0.585, 18K = 0.75, 10K = 0.417.
USD spot converted to your selected currency at live exchange rates. Adjust weight, unit, or karat to explore scenarios.
Calculate exact scrap payout →
How we calculate melt in pounds
This page uses our live USD per-gram rate for 18K, converted at 1 USD = £0.7449. In words: 100 g × 18K × £77.80/g ≈ £7,779.58 full metal value before any buyer haircut.
What UK buyers might pay for this weight (typical ranges)
Uses melt £7,779.58. Heavier totals may qualify for better percentages at established buyers—don't accept the first blended offer.
| Buyer type | Typical % of melt | Est. offer (£) |
|---|---|---|
| Pawn shop | 50–70% | £3,889.79 – £5,445.71 |
| Local gold buyer / jeweler | 65–80% | £5,056.73 – £6,223.66 |
| Online / mail-in buyer | 80–92% | £6,223.66 – £7,157.21 |
| Refinery (bulk / high volume) | 88–95% | £6,846.03 – £7,390.60 |
Ranges are common UK experience bands; pawnbrokers and mail-in buyers vary. Not a quote.
Melt value by karat (100 g, GBP)
USD: 100g of 18K gold value in USDEUR: 100g in euros (€)
Related links
- 18K gold price per gram (overview)
- All 18K gold value topics (USD)
- UK hallmarks guide (375, 585, 750)
- How to sell gold
- Gold price per gram (full table)
- Same page in USD
FAQ
- How much is 100 grams of 18K gold worth in pounds?
- 100 grams of 18K gold is worth £7,779.58 at today's gold price of $4,331/oz (converted to pounds at 1 USD = £0.7449). This is melt value — UK pawnbrokers often pay £3,890–£5,446; mail-in buyers may pay £6,224–£7,157.
- Is £7,779.58 what a UK pawnbroker will pay?
- Usually not. Pawnbrokers and many cash-for-gold buyers pay a percentage of melt—often around £3,890–£5,446 for quick purchases. Mail-in buyers may pay a higher percentage. Always get multiple offers in pounds.
- What if my lot has mixed fineness stamps?
- Separate by stamp (375 / 585 / 750 etc.) and weigh each group. A single blended offer for mixed karats is often lower than itemized pricing.
- Does 18K gold price in pounds change every day?
- Spot gold and the USD→GBP exchange rate both move. Our pages refresh on a regular schedule. Use the same spot and rate basis as our calculators when comparing quotes.