Looking for the best custom jeweler in Houston, TX? Bank Vault Nick – Diamonds by Plaza is your premier destination for luxury jewelry and high-end watches. From iced-out custom diamond pieces to buying, selling, and repairing luxury watches like Rolex, we do it all. We specialize in custom diamond settings, watch repair, and top-tier craftsmanship backed by our lifetime guarantee. Whether you want to design a unique diamond piece, shop luxury timepieces, or fix a watch, we’ve got you covered.