9K scrap gold calculator

Identify 9K before weighing

9K gold is 37.5% gold and is the lowest karat legally hallmarked as gold in the United Kingdom, Ireland and Australia. It is commonly called 375 gold. Look for 375 or 9ct. UK pieces also carry an assay office mark (such as an anchor for Birmingham or a leopard's head for London). Read the complete stamp: a plated or filled qualifier means the full weight cannot be valued as a solid 9K alloy. A worn mark is not a laboratory result. If the construction is unclear, ask for appropriate professional testing before relying on a calculation.

Use net metal weight, not the whole object

9K is popular in the UK for affordable rings, lockets and chains. Its high alloy content makes it hard-wearing, though it can look paler than higher karats. Stones, watch movements and unrelated steel parts contribute gross weight without adding the same gold content. Keep each purity in a separate group. If you have a mixed lot, use the main scrap calculator to add individual lines instead of applying 9K to everything. Record the scale unit and its precision; grams and pennyweights are not interchangeable.

How this 9K calculator works

The nominal factor is 0.375, so each net gram contains about 37.50% gold. We divide the fine-gold spot ounce by 31.1034768, multiply by your weight and then by this factor. A common 375 stamp and an exact karat fraction can differ slightly; for a binding settlement, an accepted assay is more precise. The default payout is 100%, which displays metal reference rather than predicting a buyer's offer.

Compare offers without guessing a standard percentage

Change the payout field to a percentage you are considering. It is your assumption, not a rate measured from dealers. Request the final net payment, accepted grams, tested purity and all fees from the buyer. Many UK cash-for-gold shops quote per-gram prices for 9ct. Compare those quotes with the melt value here; request written net offers and compare each percentage without assuming a universal payout. Jewelry with a desirable maker or intact stones may be better sold second-hand, so investigate that route before authorizing melting or destructive testing.

Practical checks for a 9K sale

Photograph the marks and item, weigh it with suitable precision and keep purchase or inheritance records where available. Compare written offers made at a similar quote time. A pawn loan is not a sale: its interest, redemption charges and deadline need separate assessment. Taxes depend on location and circumstances; the reference is not a tax-inclusive retail price or financial advice. Live responses are cached for five minutes, and the timestamp—not the page refresh—is the freshness check.

9K gold price per gram and unit tables · How to sell gold · Read gold hallmarks