Similar style and better fit? For sure. Same price point? Not exactly.
I picked up a couple RLBL v necks on B&S pre-switch that were a decent deal and fit me great. I also grabbed a couple custom fit cable knit silk PRL v necks on sale at Saks for like $35 a pop and they fit tremendously.
Generally house brands at Saks, Neimans and Bloomingdales will have tons of colors to choose from in a similar style to J Crew and, because they are the house label, are far more likely to be had for steep discounts around sale time. Accordingly, these will not be the best of quality, but if J Crew is the control then they will be well in the same league, if not slightly better.