This shade is a lovely gunmetal glitter called Diamond Dust, but there is also a gorgeous ruby red (aptly named Ruby Crush)
I'm a huge lover of holographic polishes so it's nice to see them being picked up by high street brands a bit more recently. This polish has a lot of texture. In some lights it's almost cement-like, and while that doesn't sound all-too glamourous, something about it is really lovely, and perfect for this time of year.
The one downfall with this polish is that it chips very easily. I got two days of wear before I had a couple of nails with huge chips, about 2 days less than my average polish wear-time.