Abstract: Diamond polishing is a type of work that requires high accuracy therefore it requires adequate supporting facilities in order to avoid the possibility of potential interference / complaints occurring as the result of non-ergonomic working facilities. This is a descriptive research to describe the state of the working desks and chairs used by the workers on Martapura diamond polishing. The research purposes were to identify the dimensions of working-desks and chairs that are being used and the perceived impact by workers on Martapura diamond polishing business unit. The working-desk and chairs measurement was conducted by using gauge instrument while the data of working-desks and chairs utilization impact was collected by observation and interview to all workers on working site. The measurement result showed that working-desks and chairs at Martapura diamond polishing business unit were not ergonomic yet.