Perfect Flashing Bloodstone

Perfect Flashing Bloodstone is a gem crafted by a jewelcrafter as a result of a proc.

Source
There is no recipe for perfect gems because they are the result of an approximately 20% proc. Gem Perfection is learned from the quest. The original recipe for Flashing Bloodstone requires 350 Jewelcrafting to create and is taught by any grand master jewelcrafting trainer for.