Microscope for diamonds, model HJ1000 Tools for removing watch backs it needs a new battery

it needs a new battery

Illuminator: 8-LED

A standard thermal diamond tester

66X with 3

Microscope for diamonds, model HJ1000 Tools for removing watch backs it needs a new batteryGeneral For reading laser inscriptions around the edge (girdle) of diamonds. In the photos we have used a micro measuring scale instead of a diamond ring, each division is 1mm. For mounted rings, insert the ring shank into the foam until the girdle is level with the lens, turn the knob until the lens is close to the girdle and in focus (this distance determines the magnification). For loose stones there is a stone holders. Customers ask: what is the