adamant

analyzing

artificial

assistant

big

brilliant

chemist

closeup

considering

crystal

diamond

discover

evaluation

examining

experienced

expert

facet

gemological

gemologist

gemology

gemstone

geological

geology

glass

hold

huge

industry

jeweler

jewelry

lab

laboratory

mask

mineral

mineralogy

mining

precious

protective

quality

research

rock

safety

science

scientist

shiny

stone

study

transparent

unbreakable

work