Kreuger Jewellery At Hotel Diplomat, you find a selection of bracelets, earrings, necklaces and rings from Kreuger Jewellery. Kreuger Jewellery was founded in April 2014 by Caroline Nilsson, born Kreuger, hence the name Kreuger Jewellery. All raw materials are purchased in Sweden by certified suppliers and manufactured in Stockholm. Caroline uses cultured freshwater pearls, diamonds (VS-VVS) and 18ct gold in her designs. The “Kreuger Butterfly” is her hallmark and something that re-occurs in most of the creations in her first collection. Available at the hotel’s reception.