I was looking at my own bottle of Sephora Diving in Malaysia (one of the Peridot dupes - I'm cheap like that, but hey, my spending money comes out of my salary, aka money I actually have to earn), and I paid attention to the colours at the edge of the bottle, where you see the duochrome. To me, it looked as though the gold colour was ringed by concentric circles of green, blue, and purple, each blending into each other. Well, it's quite complex, but that was my oversimplified way of breaking it down.
So, in order to recreate this look, I used a bunch of colours. I used Urban Decay Maui Wowie for the gold part, mixed with the tiniest bit of Sleek Screwdriver, from the Sleek Curacao Palette, to make it a little bit more yellow for colour accuracy. For the blue and the green I used two shades from an el cheapo Love Alpha Palette I got sometime back (middle two shades on the bottom row, if you really want to know). For the purple shade, I used the purple shade in my BeautyUK Day and Night Eyeshadow Palette. I don't know how much of each of the individual colours you can see (other than the gold), because I was trying to blend them one into the other - sort of like the nail polish.
Anyway, I used the gold shade on the lid, and then added on the blue, green, and purple respectively nearer the contour area. And then I blended everything together. And that's it, really. I had to adjust some of the blending a little bit here and there to match my bottle of Diving in Malaysia a little more. It's not a perfect match, but it sort of looks like Peridot, right? Sort of?
While this isn't normally a look I'd wear (or a colour combination I'd even think of making up), I think I quite like it. I wouldn't wear it out or anything, but I did have fun doing this look!