Today I have some super sparkly swatches of Sally Hansen Nail Prisms - Blush Diamond (dark version). I'm pretty certain that's the right polish. I used NailXChange's Sally Hansen Nail Prisms Guide to help me figure out which it was, polishes without names, and with different versions is so annoying.
This is layered over Color Club - Sweet Pea, first one coat, two and then three for the full-whammy holographic goodness :]
|One coat over Sweet Pea|
|And three coats for full gorgeous linear effect.|