Published Mar 8, 2026 · Updated Sep 4, 2026
When someone asks how much their 18K gold is worth, they are usually not asking what it costs to buy new. They want to know what the piece could actually fetch, which comes down to two things: how much it weighs, and how much of that weight is pure gold.
Worth Starts With Weight and Purity
18K gold is 75 percent pure, so its value is the item’s weight in grams multiplied by 0.75, multiplied by the current spot price per gram. Using today’s live 24K rate of $130.15 per gram (updated Oct 29, 2026), that puts 18K at $97.61 per gram.
What That Looks Like for Common Items
| Item | Typical Weight | Approx. Gold Value |
|---|---|---|
| Wedding band | 4g | $390.45 |
| Bracelet | 6g | $585.68 |
| Chain necklace | 10g | $976.13 |
These are ballpark figures for typical weights, calculated live from the current spot price. Your specific piece could easily weigh more or less, which is why weighing it directly gives a far more accurate number than guessing from a generic table.
Why a Buyer May Offer Less Than This
The figures above reflect gold content only. A jeweler or gold buyer typically offers a percentage of that melt value to cover refining costs and profit margin, so a cash offer will usually come in under the raw calculation. It is also worth remembering that gemstones, engraving, and brand craftsmanship add nothing to the gold value itself, even though they may have cost extra at retail. A diamond in a ring’s setting, for example, is priced and sold separately from the surrounding gold.
Weigh Your Own Item First
A kitchen scale that reads in grams is enough to get started. Once you know the weight, our gold jewelry calculator applies the live spot price and purity for 18K, or any other karat, so you have a real number before you ever talk to a buyer.
