14k gold is 58.3% pure (14/24), alloyed with metals like copper and silver for hardness. That blend resists scratches and bending far better than soft 24k, which is why most US jewelry is 14k.
To value a 14k piece, multiply the live 24k per-gram price by 0.583, then by the weight in grams. The alloy carries no precious-metal value.
18k (75%) looks richer and costs more; 10k (41.7%) is cheaper and harder. 14k is the durability-vs-purity sweet spot most buyers settle on.
Try it: 14k gold price per gram.