Karl Lagerfeld’s range of designs over the span of his career have included light up shoes for Chanel and chic designs for Coca-cola. His latest project however, brought him to a realm of design he’s not too familiar with – engagement rings. “I had never done a ring for that occasion,” Lagerfeld admitted. “It was kind of a challenge.” Lagerfeld’s new collection in collaboration with jeweller Frederick Goldman debuts at the end of the .