Let me first say I hate glitter full stop so it really is a surprise that I really love quite a few of China Glazes holo polishes. It is partly to do with their smooth texture unlike normal glitter polishes these are smooth to the touch and have no gritty glitter feeling. The other reason is hello! look at the rainbow effect holographic nail polishes have.
Electra Magenta is a mid toned pink with purple tones that shines holographic in most lights. In the above photos I have applied two coats ( I forgot to tidy them up before photos) and used no top coat as China Glaze polishes really don't chip and apply like a dream. I bought this off of eBay for around £6.