The Etruscan Museum in Rome is in the Villa Giulia:
In Florence just down the street from the Pont du Vecchio is the
Pitti Palace, has a Silver Museum:
http://www.arca.net/db/musei/silver.htm And a little farther is the
MUSEO ZOOLOGICO “LA SPECOLA” with incredible anatomical wax work:
http://www.specola.unifi.it/cere/default-e.htm (Skip the tourist trap
gelato at Vivoli and find the little Gelateria dei Neri (via dei Neri
20r) near Palazzo Veccchio and Uffizi.) Palazzo Strozzi sometimes has
a jewlery exhibit and their bookstore has books of previous exhibits.
From Florence toward Rome is Arezzo. Has the largest gold jewelry
factory in Italy and many small factories and jewelry artists.
Supposed to be over 230 tons of gold used in Arezzo per year. If you
get to Arezzo first weekend of the month there is an antique market
that fills the city center:
http://www.site.yahoo.com/santandrea/arezzo.html (Try the Ribolitta
at Il Saraceno)