I am assuming that Phoebe has been discontinued, since it's no longer on Zoya's site and I've seen it clearanced out at a few Ulta stores. But if you didn't get a chance to grab one I found a couple ways to duplicate it.
Phoebe can be recreated by using a matte topcoat over either Sally Hansen Insta-Dri in Brisk Blue or SH Xtreme Wear in Blue Me Away! Blue Me Away! Is definitely a more true dup, the Brisk Blue comes up a little lighter. BTW I am using Hard Candy Matte-ly In Love over the two Sally Hansen polishes.
So there you see. If you didn't catch it while you could but you want the look of Zoya Phoebe, you now have a couple of easy drugstore duplicates! And even though there is an extra step it's actually a little easier. I had to apply 4 coats of the Zoya, but did 2 coats of the SH polishes topped with one coat of the matte topper.