Originally posted on 22/08/2013 by Michael
Many of our clients have asked us to differentiate between white gold and platinum. Both these metals are often confused because to the regular buyer both of them look alike. Platinum and white gold are both shiny white, and both of them can be set with gemstones and diamonds. Which is why people want to know the difference.
To start off with white gold and platinum are two different metals, have different molecular structures, chemical compositions and so totally different characteristics. That said without having to dive too deep into science it can be explained in the simplest way by saying that Platinum is used in its pure form where as white good needs to be alloyed with many other metals to ensure it is strong and has that distinct white color.
A bit of metal science
Platinum happens to be a very dense grade metal with a specific gravity of 21.4, so a 4.0 mm ring which is made from platinum will be around one and a half times heavier than a ring of the very same measurements using 18ct white gold. Generally, the platinum used for jewelry is between 95% and 98% pure, and have a very small amount of other metals mixed in for added durability and strength.This makes it the ideal metal for people who have a certain sensitivity to metal which is why they may find commercial jewelry to be irritating to the skin. Also, given platinum’s density, it is very strong and so