Spot14K Gold Calculator
Estimate the melt value of 14K jewelry by weight, using a gold spot quote and the karat fraction.
Gold · $3,887.60 USD/ozt · $124.99 USD/gMarket quote · Gold API · 2026-11-14 14:09 UTC
Your item
100% Melt Value
5.8333 g fine gold
- Estimated buyer payout · 80%
- $583.28
- Illustrative payout range · 70–100%
- $510.37 – $729.10
14K gold price by weight
| Weight | Melt value (USD) |
|---|---|
| 1 g | $72.91 |
| 5 g | $364.55 |
| 10 g | $729.10 |
| 20 g | $1,458.21 |
| 30 g | $2,187.31 |
| 40 g | $2,916.42 |
| 50 g | $3,645.52 |
| 100 g | $7,291.04 |
How to calculate melt value
Melt value = weight in grams × purity fraction × (USD spot price per ozt ÷ 31.1034768)
At 14K purity, 10 g contains 5.8333 g of fine gold. Use 31.1034768 g per troy ounce or 1.55517384 g per pennyweight.
Estimated payout = melt value × selected payout percentage.
Gold Hallmark & Stamp Guide
| Stamp | Karat | Gold content |
|---|---|---|
| 999 | 24K | 99.9% |
| 916 | 22K | 91.6% |
| 875 | 21K | 87.5% |
| 750 | 18K | 75.0% |
| 585 | 14K | 58.5% |
| 417 | 10K | 41.7% |
| 375 | 9K / 9ct | 37.5% |
Frequently asked questions
How pure is 14K gold?
14K is 14/24 gold by weight on the nominal karat scale.
What does a 585 mark mean?
It indicates approximately 585 parts gold per thousand. Confirm the alloy if the stamp is worn or the piece is plated.
How much fine gold is in a 10 g 14K ring?
At nominal purity it contains about 5.83 g of fine gold, assuming the entire measured weight is the alloy.
Why does a dealer offer less than melt value?
A buyer may deduct refining, testing, shipping or operating costs. Ask for a written net offer with the tested purity and payable weight.
Should I weigh gemstones with the gold?
Use only the weight of the gold alloy. Stones, springs and other non-gold parts can overstate the result.
What do stamps like 14K GP, GF, HGE, or GEP mean for melt value?
These marks describe a gold layer, so do not use the standard 14K setting for the whole item. GP (Gold Plated), HGE (Heavy Gold Electroplate), and GEP (Gold Electroplated) indicate a coating that usually has negligible recoverable value on an individual piece. GF (Gold Filled) and RGP (Rolled Gold Plate) indicate a thicker, mechanically bonded layer. A 1/20 14K GF mark means the 14K alloy layer accounts for one twentieth (5%) of the metal weight. RGP can have a different fraction. Refiners may require bulk lots because of processing costs.