While fracture filling as a method to enhance gems has been found in gems over 2,500 years old, the diamond's unique refractive index required a more advanced solution than simple wax and oil treatments. This technology became available roughly 20 years after the time the laser drilling technique was developed.
The MANCOSA MBA is an internationally recognised postgraduate academic programme and, one of the most highly recognised in Southern Africa.
The move, hailed by conservation organizations and researchers, has resulted in the worldâs largest protected area for these migratory animals. Indonesiaâs EEZ stretches for almost 2.3 million square miles (6 million square kilometers). (Watch a video to learn more about manta rays.).