What color is this star sapphire cab?

[fiona00004]

I love wearing this one. So happy she's in my collection. Was an estate piece. But I have no idea what to call the color of the stone. Purple/blue? Periwinkle? Violet? What are your thoughts?

 

[RRfromR]

Blue. It's soo beautiful

 

[Daisys and Diamonds]

I love wearing this one. So happy she's in my collection. Was an estate piece. But I have no idea what to call the color of the stone. Purple/blue? Periwinkle? Violet? What are your thoughts?

oh wow that is so pretty
i have seen delphiniums that colour