A bright and colorful interior and pleasant music greet patrons of this Old Town Gaithersburg bookstore. Catering primarily to a Hispanic clientele, the space presents a dazzling array of Spanish-language publications: fiction and non-fiction, magazines, religious and spiritual and self-improvement. Libreria Diamonte also features a wide selection of Christian music and videos, jewelery, gifts, and even vitamins and supplements. Unexpected offerings include translation, notary and tax preparation.