postcards etc) and the item will be viewed at a fixed distance
you must only test stones that you think might be diamond (e
Buy a pen-probe for Kee electronic gold tester
Minimum sizes (carat): round brilliant 0
will hold watches up to 50mm diameter
USB Microscope with stand Options_For the partially sighted postcards etc) and the itemGeneral Includes a sturdy focusable microscope stand. That might seem trivial but it's not. With a proper 'stage', like this, you can lay out your specimens, focus precisely, even take measurements, it's turns this from a fun toy to a 'proper' microscope. Plugs into a computer with the USB cable supplied, no extra power or batteries required, LED lights, zooms from 50X to 500X magnification*. Software for Windows 11 included, take a snapshot (. jpg)
