Changing the parameters in a website filter

I have to go through some diamonds with a lot of diffrent parameters on a daily basis. I have to use this website.

I want to automate some steps in this process, using Javascript. For that I have to change the values in the filter of the website via JS.

I tried this with (the price filter as example):

var x = document.getElementsByName("price-max-input")[0]
x.value = "4,500"

This changes the value in the price input field, but the filter doesn't apply the value. So the results don't change. I also tried a few things by using .focus() but this also didn't work.

I hope someone of you have has an answer to this. Thanks in advance!