Iomandi's Wonders
This squat stone building looks more like a bunker than a shop. The only opening is a single iron door, and a constantly-manned watchpost sits atop it.
Inside is a messy curio shop stocked with every kind of magic item, most of them embellished and customized to be extra showy. Any item of rarity Common to Rare can be purchased here, in addition to jewelery, accessories, and robes enchanted with effects such as faerie fire or decorated with burnt-out ioun stones or similarly-impressive adornments.