Platinum and white gold may look nearly identical, but they are actually quite different — in makeup, durability, and price.
Any price differences will be a reflection of current trends/demand of either gold type. For example, this Blue Nile engagement ring setting is the same price in both 18k white gold and 18k yellow ...
Other popular ring metals are white gold, rose gold or hypoallergenic platinum. According to Hernandez, bezel and shared prong settings are trending for those who lead active lifestyles.