Where Can I sell my Diamond ?

[atomic_angel]

I am a long time lurker and I would like to upgrade my diamond but of Course I have to sell what I have first. I have a GIA 1.71 Oval Please see below. If I'm not in the right place please point me in the right direction. Thanks !
Take a look at this GIA report via Report Check:
https://www.gia.edu/report-check?reportno=5176592283

 

[scarsmum]

Loupe troop, jewels by grace, love affair diamonds, diamond bistro

 

[Rpb]

Ebay