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.
In November 1989, the UN General Assembly adopted the Convention on the Rights of the Child (CRC). It is the most widely ratified human rights treaty in the world. There are only 2 countries which have not signed the CRC; the United States of America and Somalia. Australia ratified the CRC in December 1990.This means that Australia has a duty to ensure that all children in Australia enjoy the rights set out in the treaty.here are only 2 countries which have not signed the CRC; the United States of America and Somalia. Australia ratified the CRC in December 1990. This means that Australia has a duty to ensure that all children in Australia enjoy the rights set out in the treaty.