The black one is very doll like but it's abit too black. The purple one is pretty neat...three shades so it's quite natural!
The prices depend on the brand you want. There's Calla, New Bio,GNG, Bescon, New Vision and one more new brand name which I forgot . New Bio is the cheapest, $33 per pair. 1 year use.
zayevil
Just to share afew wesbites: http://www.ebay.com.sg/viItem?ItemId=6812234209#details