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 bark is poisonous too â burning it releases a smoke that causes temporary (and in some cases, permanent) blindness. Considering all the ways it can hurt you, itâs no wonder the manchineel currently holds the Guinness record for worldâs most dangerous tree.t was supposedly named â manzanita de la muerte â (little apple of death) by Christopher Columbus. But it might just be the least dangerous part of the tree. The manchineelâs milky white sap is incredibly caustic and poisonous as well â even a drop could cause skin blisters, dermatitis, swelling or burns.