Terrible, terrible, terrible. Would never recommend Poshmark to anyone I know.
Stick to more reputable sites (even Ebay is better than this site). I showed them a half-dozen pictures of a presumably "authentic" ring and it is not authentic as I own the same one (was going to stack them). You can see they are clearly different. Now I'm attempting to get my money back through Paypal.
Also, NO PHONE to contact so they deny a claim to return and then don't care if you're upset.
I think all companies should be required to have a phone number and some sort of return policy in place. I learned the hard way.
Review about: Ring.
Reason of review: Poor customer service.
Monetary Loss: $102.
Preferred solution: Full refund.