Still to my eyes the blue on your bead is different than the standard blue 7 layers. Would blue/green be a better way to describe? I do understand that thickness of glass, grind and color directly under the outer layer can influence the color we see. I have several of the 7 layer chevron beads with the interesting grey and white flecks. Some of the outer layers are a darker blue/green that may be hard to distinguish from the standard blue color we usually see on these beads.

I am by no stretch an expert and this is my humble opinion.

Thanks,
Matt