This emerald cut with normal end angles is certainly a very saturated blue with out any traces of green in natural light. (touch of green in yellowish light as expected) It flashes nicely in a decent light, but has a higher than perfect tone level. Still it is pure and bright for such a dark emerald cut. And blues (indicolites) are so desirable. The gemstone weighs a solid 2.59 carats and would make a fine ring stone. Set in a fine gold setting, I am sure that many people would think this was a sapphire and the jester of gemstones would have struck again. The games tourmaline plays in copying the colors of other gemstones help keep me cutting.