- Jewelry Identifier
- Gold alloys
* Gold alloy reference
Gold karats and alloys, explained
24K, 18K, 14K, 10K — the karat number tells you how much of the metal is actually gold, and the rest of the recipe decides whether it comes out yellow, white, rose, or green. This is a complete reference to the common gold alloys, each with its exact composition, purity, and melt-value math.
Published May 30, 2026
24K gold (99.9% pure)
22K gold (91.6% pure)
18K gold (75.0% pure)
14K gold (58.5% pure)
10K gold (41.7% pure)
9K gold (37.5% pure)
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