The bust appears to be ivory or possibly alabaster. The artist's name is Corelli, and Firenze means the city of Florence. If it were alabaster, the price would be considerably less. Now for the care of your statue. A periodic dusting will do the trick.
Marble is a porous and soft substance that can be damaged by water and air pollution.
It can be easily scratched by fingernails and can absorb oils and lotions from your hands. It is advisable to wear gloves when handling marble statues. As tempting as it is, do not display a bust on a pedestal.