gemologists
/dʒɛˈmɑlədʒɪsts/
noun
- Scientists or experts who study, identify, and evaluate gemstones (precious stones like diamonds, rubies, and emeralds).
- My aunt consulted gemologists before buying her engagement ring.
- Gemologists often travel to mines to study how gemstones form in nature.
- The gemologists used a microscope to check the diamond for flaws.