Is it possible to make a HEMA version of this sword?

Hello! I am new to HEMA and I was always obsessed by famous swords. I would liek to ask, if it possible to forge a HEMA replica of this kind of sword? Which material might replace the crystal, in order to make it less expensive?

I would like to know your opinions.

https://preview.redd.it/2xkdutkoepsf1.png?width=480&format=png&auto=webp&s=ad6d5b8ae704c6fbdcb1750bb664b72bfcca286f