If you bought it because you like it, rather than an investment, then it's still all good, Max..
After all, the only difference between a Cascade and a Holmegaard, besides colour, is that one was made in Copenhagen and t'other was probably made in Rotherham.
How big is your vase, btw Max? I also need to figure out the range of available sizes from Cascade. I did once find a tiny amber Gulvase (from memory, approx. 15cm tall) at an antique fair for Â£1, but I had literally just spent my last pennies.