Here is a polish I've had for quite some time - Peripera Prism Navy P019.
It's a Korean cosmetics brand and I bought it on Ebay for £5.82. They have really pretty duochromes and metallics and this particular colour caught my eye. To be honest, I really loved the cute shape of the bottle!
It's supposed to be a navy/ teal duochrome polish but it doesn't quite translate onto the nail. However, it has an amazing foil finish packed with shimmer which is very dense and opaque and doesn't streak at all. I can see myself wearing this a few times throughout Autumn/ Winter and it will make an awesome stamping polish too!