A common misconception is that white gold and platinum are the same things and only separated by price but this is not the case. Platinum is four times stronger than white gold, does not discolour or oxidise as white gold does and is more durable. In terms of appearance, platinum has a very white and slightly duller appearance than white gold, which shines brighter. 18 karat white gold is a very good option for a customer who is looking for a purer metal at a reasonable price.