PLATINUM VERSUS WHITE GOLD
The comparisons between white gold and platinum are focussed primarily towards rings rather than other jewellery. This is because engagement, wedding and eternity rings tend to be worn on a regular basis and are also in frequent contact with other materials.
First of all, unlike platinum, which is pure, 18K white gold is made as per industry standards of an alloy of gold and other white metals including silver and palladium. It is then plated in rhodium for a durable and scratch resistant finish.After extensive use this rhodium finish is susceptible to gradually wearing away to reveal the 18K yellow gold beneath. This can be resolved if desired by having the ring re-coated. Platinum rings are more expensive than 18K white gold rings so it's really a matter of choice as to which one you opt for.