Hope the pooch gets better. A few years ago our boarder collie ate some of my wife's brides maid's earrings right before we got married. We found all of the pieces except for one diamond shaped stud. Sure enough when we took her in to get an Xray, there it was, a little heart shaped diamond in her intestine. We had to feed her bread soaked in brown gravy to try and protect her internals from not getting punctured by the stud earing. The best part was going outside everyday for about a week and picking up her poop with a plastic sandwich bag and mashing it up to see if the earing passed. Eventually she passed it and all was right with the world again.
