Article 9 : Differences in raw materials used to make jewelry

Last updated: 17 Mar 2025

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Differences in raw materials used to make jewelry

Type	Difference
Brass	Brass is an alloy of copper and zinc, featuring a golden-like color. It is affordable and commonly used for fashion jewelry.
Copper	Copper is a reddish-orange metal known for its flexibility but tends to develop a green patina over time when exposed to air. It is often used as a base for plated jewelry.
Silver925	Silver 925 consists of 92.5% pure silver and 7.5% other metals (usually copper) to enhance durability.
K9WG, K14WG, K18WG (White Gold)	White gold is an alloy of gold mixed with white metals such as nickel or palladium. The karat (K) number indicates gold content: K9 = 37.5% gold, K14 = 58.3% gold, K18 = 75% gold.
K9YG, K14YG, K18YG (Yellow Gold)	Yellow gold is gold mixed with metals like copper and zinc to increase strength and enhance its warm golden hue.