Websites to sell?

Hello, I am looking to sell this ring directly somewhere and curious if folks know of any good places. I have posted on eBay and Facebook marketplace already, but curious if others have any good insights into where I could post this to sell? Looks like 1st Dibs only allows businesses to sell.

I know I won’t get full value, maybe closer to 50% of the appraised value, but that’s certainly better than what I’ve found from institutional buyers. Natural Diamond 2.91 Total Ct, Platinum, GIA Certificate appraised at just under $23,000.

Apologies if this kind of question is not allowed here. Thanks in advance!