Diamond and white sapphire are two of the most expensive gemstones on the market. They are very similar to each other and it is difficult to distinguish which one is that. White sapphire is also cheaper than a diamond and some people find it a great idea for an engagement ring. But is it really worth it? First of all, there is no such thing as a sapphire cut grade. Many people expect that in the gemstone’s report they will see the exact proportions of a sapphire. But GIA, for example, describes the basic parameters like carat weight, body color,...