Hi! I think it's nice, but it does not stand out which is what I think you feel is missing. There is too much metal and only a few tiny diamonds, to your point about it not being sparkly enough. The center metal dot has been my issue with the VA motif in pave.
That said, if you have loved this piece forever, then keep it. Anything VCA is going to be overpriced, so I would not be bothered by the price if that is your only issue with buyer's remorse. Nothing VCA is worth it, and you are paying for the name. For me, there is often much satisfaction in paying for brand names pieces, so I don't blink an eye when paying for overpriced branded items. Enjoy it if you love the VCA brand and piece.
However, if your buyer's remorse is because it's a bit underwhelming, I would agree with that. The pendant does not pack a punch. If you still want a pendant, I personally think getting a stone would make more of a statement. With a stone, you see that beautiful color, and it's one solid quatrefoil. Based on your outfit and jewelry, I think a YG oynx would look great and pop. I also think with your jewelry and other outfits, the YG MOP would look nice. YG looks great with all the stones.
If you are not in love with the pendant, I'd return it. For me, I have always felt the VA pave with that "dot" in the center kills the pave look (e.g. not enough bling to make it a true diamond piece).
Just my two cents for a different point of view. Hope that helps.