This seller has virtually no auctions under his/her belt considering the magnitude of the item he/she is now purporting to hold. Further... have you seen their other auctions? Herbs and seeds! How can a bloody gardener have hold of Elvis' ring? There's a lacklustre description, lacklustre images, a lacklustre price - and NO Certificate of Authenticity.
I'm not sure you'd be wanting to go through the normal ebay channels if you REALLY possessed the genuine article. This isn't just a piece of wallpaper from Graceland or a signed concert ticket... This is Elvis' wedding ring! In fact, it isn't even that...
This is a fake through and through.