Not sure where I got this idea but after hunting the whole net for helpful ideas with it, I couldn't find a single photo. So I do believe I'd be one of the rare people to do this pattern - Diamond Plate.
Came out pretty darn awesome, I think!
The final result:
The products I used:
*2 coats Avon Matte Grey Cement
*Sponged Avon Gunmetal
*1 coat Franken Holo Wet N' Wild Clear + flex powder
*Diamonds in China Glaze Millenium
*Shadow in Kiss Nail Art Paint Black and W&W Black Creme
With Franken Holo Flex: