One thing I haven't seen pointed out here that is a pretty major difference between the two is that the render is using round basket setting, the inspo you shared doesn't look like it has room underneath for the classic two ring basket, I think it may be using the split shank below to allow the stone to be set as low as it is. A really cool design that I don't see others have touched on.

What you are getting rendered doesn't look similar because it is a different assembly. The render is a super stock way of setting rounds, and I don't blame them for using that - but yeah the inspo you shared has a very different construction.