DTC's diamond jewellery design competition for Gulf Cooperation Council (GCC) countries is now open for entries, according to reports. %% The deadline for entries to the competition, which is aimed at promoting creativity in design in the Arab world, closes on April 15th. %% Participants are required to send in a design, inspired by Arab culture, based on any one of five categories. %% The final 12 designs will be displayed at a gala event in June in Dubai, where the five winners in each category will then be selected.