What Does 375 Mean on Gold?
Stamps describe metal content; they are not a buy/sell quote. When in doubt, test with a jeweler or assay service.
37.5% pure gold — standard in UK and Australia
The stamp tells you purity; the scale tells you weight. With those two inputs, you can benchmark melt before you accept any offer.
Common confusion points
- Some pieces combine parts (e.g., clasp vs chain) with different karats—test more than one spot if value is high.
- Stamps can be partial or mirrored; a worn punch can turn a 585 into something that looks like 588 or 535.
Similar / easily-confused stamps
This stamp corresponds to 9K — about 37.5% gold content by weight.
Common in: UK, Australia, Ireland. Typical items: Everyday jewelry, Fashion pieces.
This fineness shows up often in pieces sold for or imported from UK, Australia, Ireland—always match the stamp to what you actually weigh.
Illustrative: at the USD spot used on this site, 10 g of 9K gold has a rough melt around $543.70 (not an offer).
Verification tips
- If the piece is plated, you may see marks like GP, GF, HGE—those are not solid-gold fineness stamps.
- XRF is the quickest non-destructive test; acid tests are common but depend on operator skill.
- Magnets can catch obvious fakes but can’t prove purity (some base metals are non-magnetic).
Where you'll see the 375 stamp
Check inside ring shanks, near necklace and bracelet clasps, on earring posts or backs, and on small tags. Stamps can be tiny—use bright light or a loupe if the punch is worn.
Gold Value Calculator
Adjust this price to project a future value. 24K per troy oz.
Total gold value$543.70
Current 9K price • $54.37/gram • $1691.10/oz
Formula: weight × karat multiplier × spot price. 14K = 0.585, 18K = 0.75, 10K = 0.417.
Same USD spot basis as the estimates on this page. Adjust weight, unit, or karat to explore scenarios.
375 gold — melt by weight (USD, reference)
Same spot basis as the calculator above. Full metal value only—not stones or labor.
| Weight | Approx. melt |
|---|---|
| 1 g | $54.37 |
| 2 g | $108.74 |
| 5 g | $271.85 |
| 10 g | $543.70 |
| 20 g | $1,087.40 |
| 50 g | $2,718.50 |
How to verify a stamp
Stamps can wear down or be wrong. A jeweler can do an acid scratch test or XRF; a magnet won't stick to solid gold, but it isn't proof of purity on its own. For high-value pieces, use a buyer you trust or an independent assay.
Related links
FAQ
- What does 375 mean on gold?
- 375 is a fineness stamp. For gold jewelry it means 9K (37.5% gold content in the alloy). 37.5% pure gold — standard in UK and Australia
- Is 375 the same as 9K?
- Yes—375 on gold corresponds to 9K purity. Regional stamping styles differ, but the gold fraction is the same idea.
- Is 375 always a gold stamp?
- Not always. Stamps can be worn, incomplete, or misapplied, and counterfeit marks exist. If value is significant, confirm with a jeweler (XRF) or a trusted buyer before you sell.