Different materials: 18-karat gold is an alloy of gold and other metals, while platinum is a naturally occurring white precious metal.
Different prices: Platinum is a rare precious metal and is more expensive than 18k gold.
Hardness is different: 18k gold hardness is relatively large, platinum hardness is low, easy to deformation.
Different colors: 18k gold is rich in color, white, yellow, rose gold, etc. Platinum is a natural pure white.
1. Different materials
18K gold is an alloy of gold and other metals, and the content of gold in k gold is less than 90 percent.
Platinum is a naturally occurring white precious metal, rare in production and very precious.
2. The price is different
18K gold is an alloy of gold and other metals, so it is relatively cheap.
Platinum is 30 times rarer than gold and can only be mined in very few places around the world. The so-called thing is rare, so the price of platinum will be more expensive.
3, the hardness is different
18K gold is the addition of other metals to gold, so the hardness of 18k gold is relatively large.
Platinum toughness and ductility is very good, but its hardness is relatively low, easy to deformation, if not properly matched will lead to diamond fall off.
4. Different colors
The natural color of 18k gold should be golden in color, but other metals are added, so there will be white 18k gold, yellow 18k gold, rose 18k gold, black 18k gold and so on.
The luster of platinum is natural and pure, will not change color or fade because of daily wear, and can always maintain a natural pure white luster no matter how long it is worn.