It is hard to tell exactly what is going on in this unique gemstone. It is a standard round brilliant that from the back appears not to be zoned. Therefor the flashes of pastel orange and pastel yellow must be a product of dichroism. Either way, zoning or dichroism, it doesn’t matter as much as the beautiful patterns of orange pastel flash and yellow pastel flash that keeps changing like a kaleidoscope. It appears to be eye clean and is a real blazer. It weighs 2.65 carats.