This design does not look like Chambord.
Typically Chambord vases have a dark colour at the core (pink/blue/purple etc.) and then are cased sommerso (so that the coloured parts appear to 'float' over the table). Most designs had a clear 'block foot' (typically square, sometimes triangular) There are four? basic models of vase and some bowls.
Although this is obviousy a 'free-form' design which has been hand worked, it doesn't share anything else that is similar to the established examples of Chambord. (No colour, no 'floating foot', no similar design recorded in the archive/webtrawl?)
I wouldn't immediately conclude China, but I'm also not sure that it is a Chambord vase by Frat. Toso.