phew - thought for a moment you were going to ask me for a loan

Without handling this piece, it appears that the dolphins and base are pressed, but to my eyes the dish part looks to be cut - though of course I could be very wrong. With items which include cutting, we need to be very careful to make sure there isn't damage.
The British tend to interpret the word jardiniere as meaning an indoor container for growing plants, and made of ceramic, usually.
For something intended as a decorative item for the centre of the table - and associated often with cut flowers - we steal another French word, and use epergne.
Then again I've a feeling that bon bon and comport weren't ours originally either.
Understand your caution in view of the replacement parts - perhaps best to avoid this one then. Regret I've no ideas as to maker.