Other · Full-time
Official sourceGemmologist II

Published by employer
About this role
Role overview
Advert reference: 187/2026
Job scale: CSG 10
Read full role
Requirements
For appointment to this grade, a candidate must have:- (i) a Bachelors degree in Geology, Earth Sciences, Chemistry, Mineral Processing or Materials Engineering from a university recognized in Kenya; and (ii) proficiency in using gemological testing instruments
Duties and Responsibilities
Duties and responsibilities will include: - (i) examining and identifying minerals using basic, standard, and advanced mineral testing equipment; (ii) collecting, analyzing, and interpreting mineralogical data to support effective resource management and decision-making; (iii) assisting in grading and valuing gemstones to determine and enhance their market value; (iv) safely processing, pulverizing, and homogenizing incoming ore and mineral samples for laboratory analysis; (v) performing routine quantitative analyses using XRF (X-ray Fluorescence), XRD (X-ray Diffraction), and spectrometer systems; (vi) calibrating and maintaining sensitive laboratory instruments, ensuring accurate results and complete batch chain-of-custody documentation; (vii) evaluating rough gemstones to estimate weight recovery and maximize polished gemstone yield; and (viii) performing and supervising precision gemstone processing, including sawing, pre-forming, faceting, and cabochon cutting.