Kultakeskus manufactures, for example, Kohinoor diamond rings. In addition, they produce jewellery designed by both Wirkkala and Vitali. Jewellery designed by Liisa Vitali (1918-1987) has been manufactured by herself, as well as individually or in series production by Aatos Hauli (AHi), Mauri Sarparanta (MSS), Westerback Ky (NW), and Kultakeskus (lion). Vintage jewellery has been cleaned and any engravings removed. Older vintage pieces intentionally retain their aged patina. Newer models and diamond jewellery have been cleaned more thoroughly and are often like new.
















