Microscope for diamonds, model HAD Magnifier Style_Loupe or eyeglass pocket-size if you have a

pocket-size if you have a large pocket)

weighs down to 1g and all the way to 10Kg

but there isn't much room to fit stones mounted in jewellery

even if the back is 'closed' (not open to the light)

USB rechargeable battery

Microscope for diamonds, model HAD Magnifier Style_Loupe or eyeglass pocket-size if you have aGeneral For reading laser inscriptions around the edge (girdle) of diamonds. For mounted rings, insert the ring shank into the foam, raise the stage 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 are a couple of stone holders. The adjustable light is dimmable (easier to get a perfectly exposed image without having to fiddle