gemologist

n.

宝石学家；

gemologist
The Ultimate Gemologist: A Tribute to Richard T. Liddicoat
Upper St. Clair Gemologist Once Played in Popular Local Band
The Quintessential Gemologist: Robert C. Kammerling 1947-1996
Charles Alexander Beghtol - Colorado Gemologist
G. Robert Crowningshield: A Legendary Gemologist
Color change vs. alexandrite-like.(ask the gemologist)
Nano-Polycrystalline Diamond Sphere: A Gemologist's Perspective
Disabled cop finds second career as a gemologist.(spotlight)(Brief Article)
Completing the journey to the center of the ideal cut's sweet spot: in this second of two articles, gemologist and research engineer...