Bijouterie Diplomate is a family-owned jeweller on Montreal’s Avenue du Mont-Royal, serving the Plateau-Mont-Royal community since 1965. The brand combines traditional jewellery expertise with personalized service, offering pieces for everyday wear as well as engagements, weddings and special occasions. Its selection includes rings, earrings, necklaces, bracelets, chains and pendants in gold and sterling silver, alongside engagement rings and wedding bands featuring natural or lab-grown diamonds. Customers can also explore made-to-measure designs, including custom rings and bands in gold, platinum or silver.

The shop carries watches from authorized brands including Tissot, Casio, Citizen, Victorinox and Bering, as well as G-Shock, and offers accessories such as Swiss knives and jewellery-care products. On-site services include jewellery and watch repairs, polishing, laser engraving, gold purchasing, ear piercing and eyeglass-frame repair. The team also provides guidance through practical resources on diamonds, ring sizing, precious metals and jewellery and watch care. Customers can browse online or visit the store for consultations and custom-design assistance.