Is it toxic to swallow grout?

not toxic. no it is not toxic. the dog will pass the ring in a few hours

Grout is not toxic. Grout sealers and adhesives can be toxic but not the grout itself. Tami Barker www.mosaicforms.com Mosaic Art Instructor and Creator

no but they are not to eat chocolate or drink antifreeze

There is no real way to swallow really. It is more like an instinct that is built into the body.

It is very unlikely that there will be anything at all toxic about swallowing a diamond ring. Your primary concern will be that the ring will make it all the way through you without getting blocked...