Scientific and technological services and research and design relating thereto; industrial analysis and research services; design, technical research, development and testing of computer hardware, software, scientific and laboratory instruments all relating to the screening, grading, identification, authentication, observation, weighing, measuring, testing, checking, cleaning, analysis, sorting, inspection, evaluation, inscription, verification including parcel verification and certification of diamonds including set diamonds, diamond melee, jewellery, precious and semi-precious stones; design and development of material testing and examining apparatus and instruments all relating to the screening, grading, identification, authentication, observation, weighing, measuring, testing, checking, cleaning, analysis, sorting, inspection, evaluation, inscription, verification including parcel verification and certification of diamonds including set diamonds, diamond melee, jewellery, precious and semi-precious stones; gemmological services, namely, the screening, grading, identification, authentication, observation, weighing, measuring, testing, checking, cleaning, analysis, sorting, inspection, evaluation, inscription, verification including parcel verification and certification of diamonds including set diamonds, diamond melee, jewellery, precious and semi-precious stones; quality management services, namely, quality evaluation and analysis, quality assurance, and quality control in the field of diamonds, jewellery, precious and semi-precious stones; technical consultancy and advisory services in the name of computer hardware, software, scientific and laboratory instruments all relating to the screening, grading, identification, authentication, observation, weighing, measuring, testing, checking, cleaning, analysis, sorting, inspection, evaluation, inscription, verification including parcel verification and certification of diamonds including set diamonds, diamond melee, jewellery, precious and semi-precious stones