Photos would help. I usually prefer large fixtures but this does not sound right.

Yes, a 46” diameter round chandelier would be much too large for your rectangular table. That size chandelier would be fine over a 72” diameter round table.

A 25” diameter round chandelier would be a good size for your table. A round chandelier should measure in diameter between 1/2 and 2/3 the width of a rectangular table.

Sorry should have also stated I don't have photos as it's a new build. Lighting is just currently being hung & table is TBD. I just don't want to waste anyone's time installing a light that won't work.

Without having pictures, a 46” round chandelier sounds too large for bothe the table and size dining room you have.

Does the one you picked come in a smaller size?

IMO you get the table and then get the fixture and honestly there is no way to answer this question without seeing both the table and the fixture. In that space I would be looking at a round table

I stated the size of the table I am planning to get in my original post but unfortunately I need to finish selecting my lighting prior to purchase at this stage. I feel my question was answered & confirmed what I was already thinking. Thanks!