Unfortunately, I don't own Clarins 230 so I can't do a comparison between the two polishes.
I decided to layer Fantasy Fire over Verity Deep Violet so that it could keep the jelly look.
Fantasy Fire is a polish that is best layered because it is so sheer and because the bottles are so small. Each one contains only 5mL of product.
For reference, this is three coats of VDV and then two coats of Fantasy Fire on top. I could have easily gone with just one coat of FF but I wanted to see how it built up.
The downside to this polish? It's only available in the UK. I'm lucky enough to have a few friends over there who were gracious enough to send me a few bottles.