Why 10K gold chains are mostly copper — and why nobody talks about it
Most guys buying their first gold chain focus on two things — price and karat. Completely reasonable. But there's a third number nobody mentions that changes everything: how much of that chain is actually gold.
Here's what the karats actually mean:
- 10K — 41.7% gold. 58.3% copper, zinc, silver filler.
- 14K — 58.5% gold. 41.5% filler.
- 18K — 75% gold. 25% filler.
- 23K Thai gold — 96.5% gold. 3.5% filler.
That 10K chain weighing 89 grams from a US jeweller? Only 37 of those grams are gold. The other 52 grams is base metal — and you're paying gold prices for it.
Think about that. More than half the weight of a 10K chain is copper. It looks gold, it's stamped gold, it's sold as gold — but the majority of what you're wearing isn't gold at all.
This isn't a scam exactly. 10K is a legitimate gold standard. But it's worth knowing what you're actually buying before you spend $6,000-8,000.
23K Thai gold is 96.5% pure. Almost the entire chain is real gold. The making fee and a tiny alloy content account for the rest. What you see is almost entirely what you're getting.
Nobody in the US retail jewellery industry advertises this comparison. Now you know why.