Nothing odd in having nice jewellery, not quite like the ones that Prue has pictured, but certainly things that come down though a family. Must say that I wouldn't like rings like that though.
I have got one or two diamond rings like that, and when anything happens to me. I shall leave them to my Daughter and Granchildren/friends. In the hope that they will treasure them as well
A lot of black mourning jewellery became very fashionable when Prince albert died, they made all sorts of things then in black onyx http://wire-sculpture.com/BlackOnyx.htm
Clocks, [I have three] to broaches and rings. It was also common to have lock of hair made into a broach or ring.