I would recommend gemselect because it is the easiest way to find whatever gemstone you are looking for. they have pretty much everything so its impossible to walk away without what you went their for.
Gem Select makes it super easy to just find a particular stone that meets your requirements. They have a large taskbar with many different filters to really narrow down your search by cut, clarity, size, even color! I've never seen another site that has all those options.
