Chrono|1377863696|3512363 said:Peridot is a clean stone - there is no reason to compromise on clarity. Just as an FYI, eye clean is the standard for most coloured gemstones. There is no need to get a loupe clean stone. The bulk of the price stems from the strength of colour, purity of colour and how dark/light it is. The best peridot should be chrome green with no yellow modifiers and an intense pop of colour. It is a low RI stone though so having a good cut will matter.