Loupe
A small magnifying lens used by gemologists to examine stones. Standard gem loupes are 10× magnification and are the basis for GIA clarity grading, which specifies inclusions visible under 10× loupe.
Categoría:
Gemology
A small magnifying lens used by gemologists to examine stones. Standard gem loupes are 10× magnification and are the basis for GIA clarity grading, which specifies inclusions visible under 10× loupe.