Zoya Sia

I might have found the most gorgeous royal blue nail polish shade ever. It's Zoya's nail polish shade called Sia. For the pictures below I used 2 coats with was opaque enough and did not any top coat. Without the top coat this nail polish is shiny enough and I am loving it. The formula is creamy and smooth which makes the application of the polish really easy. Isn't it the most rich blue every? What is your most favorite shade of blue out there?