Karla Castillo is a jewellery brand started by Karla herself. Karla is a dentist during the day, but in the evening she is a silversmith. She makes beautiful one-of-a-kind items, but also a standard line with simple designs that she keeps repeating. All her jewellery comes in a unique envelope or bag. These are specially made at ETCA, an NGO that works with donated substances in a fishing town on the Nicaraguan coast.