I think it is absolutely classically distinctive of Chinese work. I recognise the canes and the colours.
I think it's an older one, but I may be wrong.
Anne Metcalfe shows in her "A Collector's Guide: Paperweights of the 19th & 20th Centuries" four examples as representative for Chinese weights:
1. A "Chinese White" - truly a Chinese speciality, mainly in the 1930ies.
2. A flower bouquet - copying antique French weights, also mainly in the 1930ies.
3. Stylised flowers with butterflies (bees also being very popular) - modern (post WW II) .... and
4. the type of weight in question here - also modern (post WW II): always with these yellow/red stars and green leaves, often with other additions (e.g. rose or bird canes).
So my "diagnosis" was - definitely Chinese, second half last century - whether it was bought in Murano or not.
Thank you for all your comments!