diamond, quality and luxury gemstone check of a jeweler woman worker with a spyglass. microscope of a store employee or scientist staff looking at product color, cut and authenticity of diamonds - 寶石學 個照片及圖片檔奢侈, 工業
many different kinds of colorful minerals and semi precious gems on white background. - 寶石學 個照片及圖片檔對照, 微距攝影, 大自然
Interview with Joanne Chan Wai-ching, gemologist from Hong Kong Jade and Stone Laboratory, in Jordan. 27 April 2004
Beth Leinonen, a gemologist, examines a diamond for imperfections at a store run by Brilliant Earth, which uses conflict-free diamonds from Canadian...
Beth Leinonen, a gemologist, examines a diamond for imperfections at a store run by Brilliant Earth, which uses conflict-free diamonds from Canadian...
Headquarters of the Center of Technological Development of the Colombian Emerald where scientists, gemologist and chemists examine, research and...
Headquarters of the Center of Technological Development of the Colombian Emerald where scientists, gemologist and chemists examine, research and...
Headquarters of the Center of Technological Development of the Colombian Emerald where scientists, gemologist and chemists examine, research and...
Beth Leinonen, a gemologist, examines a diamond for imperfections at a store run by Brilliant Earth, which uses conflict-free diamonds from Canadian...
Beth Leinonen, a gemologist, examines a diamond for imperfections at a store run by Brilliant Earth, which uses conflict-free diamonds from Canadian...
Beth Leinonen, a gemologist, examines a diamond for imperfections at a store run by Brilliant Earth, which uses conflict-free diamonds from Canadian...
Beth Leinonen, a gemologist, examines a diamond for imperfections at a store run by Brilliant Earth, which uses conflict-free diamonds from Canadian...
One Way To Beat The Dust Of Progress Merritt Sherer, gemologist who runs a rock and jewelry store on the ground floor of the 10-story building at...
An opal carving of Aztec warrior Cuauhtemoc is examined by Denver gemologist Walter Coleman at Stapleton International Airport Thursday morning. The...
Isabel da Silva Ramos, a gemologist working for Poiray Jewellers of Madrid, in Marbella, September 1985.首飾