OPI Princesses Rule! (code R44) is a sparkly pale pink, the sparkle has a sort of silvery or white base to it, so it brings the color to seem even paler.
It's sparkly and shimmery (as opposed to a straight shimmer finish or frosty look), but it is not dense enough to become a foil finish.
Overall 4/5. I'm wearing 2 coats as usual.