1. Different ingredients
18k gold is an alloy formed by fusion of gold and other metals. Its color is richer, and there are three kinds of white gold, rose gold, and gold. Platinum is a naturally occurring white precious metal.
2. Purity
The purity of 18k gold is only 75%, and the purity of platinum is as high as 90% to 95%.
3. The output is different
Platinum is produced 30 times less than gold and can only be mined in a few places. The main component of 18k gold is gold, which has more reserves than platinum.
4. Color durability
18k gold is synthetic, and people will wear off the plating after a long period of time, which is what people often call fading. Platinum is stable in nature, high in purity, and will never fade.
