I recently got new contact lenses since the pair I was wearing has expired. I bought two sets, one in my normal color which is a light brown (Cinnamon), and another one which is rimmed in brown with flecks of violet in the middle (Amethyst). Here is the latter in action!
It looks grayish here but that's the way I like it. You can see the violet only in certain lightning - that's perfect for me because I don't want to look too, er, wacky. Subtlety is key!
I got these lenses in Executive Optical for only ~P800. Yes, both of them! That's very cheap since they can be used for up to three months. The brand is called Flexwear and you can see it immediately in their contact lense section. :)
Hope this answers your questions!