|Written by pep1|
Loops are used to check the engravings and stampings on gold jewelry clasp to check the karat of the gold.
The loop is basically like a small magnifying glass that you adjust by moving to and away from your eyes to view the object better.Ā Ā
If you are checking diamonds, you will use the loop to check the diamond's serial number if it is a very expensive diamond or you can check the diamond's inclusions. The inclusions are the flaws you see inside the diamond.
Use loops to check serial numbers on watches also check for key indicators that will tell you whether a watch is real or not.