Looks a lot like the Bulgari Sting was wearing at the Oscars in 2017. http://forums.timezone.com/index.php?t=tree&goto=7394890&rid=12189#msg_7394890
Doesn't look like it made anymore. Can't seem to find it for sale anywhere other than the Japan sales listings on eBay. I'm always weary of those though as I've been burned in the past...