I am still not certain that it would be durable enough to use as a wedding band.
I have read that the Chinese believe(d) that jade, (in the form of a
bracelet, at least) protects the wearer from harm, and that, if it
should break (which it does not do very readily) it is an indication
of a danger averted from the wearer-- it is sacrificing itself.
This seems to me to be a pretty good philosophical reason for
choosing it as a wedding ring, as long as the wearer buys into the
whole story to some degree, and is therefore willing to accept that
the ring may have to be replaced if it “does its job”.
Noel