This diploma offers people who already hold a bachelor's degree (such as a Bachelor of Arts, Bachelor of Commerce, Bachelor of Fine Arts, or Bachelor of Science) an opportunity to study science in-depth. It is designed to provide a qualification for graduates seeking to qualify for entry to postgraduate qualifications in Science, or to extend or upgrade their existing qualifications. The GradDipSc may be awarded with Distinction.

Postgraduate study can bring many career benefits eg, specialist skills and enhanced knowledge, entry into specific occupations, higher starting salary/progression rates, research capability/achievement and evidence of high academic attainment/self-discipline.