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 applicability of international human rights treaties to ratifying states is not controversial and there is no ambiguity about the general principle that governments are accountable for human rights standards. There is, however, considerably less clarity about the nature of government obligations.