Köttner Diamonds is a Czech-rooted European jeweller with a tradition dating back to 1919. Based in Prague, the brand combines traditional goldsmithing with modern technology to create luxury jewellery in contemporary and timeless designs. Its collections include engagement and wedding rings, diamond jewellery, pearls, necklaces, bracelets, earrings and other pieces. Customers can explore the latest ring collections, receive guidance on choosing and caring for jewellery, and learn about investment jewellery and gemstone certificates.

Each piece is handcrafted in Köttner’s own goldsmithing atelier, with individual production available. The brand states that its stones come with certificates of origin and quality, and offers a lifetime guarantee on its jewellery. Services include jewellery care and servicing, online shopping, and appointments at its showroom in the Kolowratský Palace on Ovocný trh in central Prague. Köttner presents its work as a blend of skilled craftsmanship, premium quality and personal customer service, with short delivery times also highlighted as part of its offering.