Gemmological microscope Type_Approved 5% false negative rate) providing

5% false negative rate) providing the colour is 'clear' (colour D to J) and the size is at least 0

if it's still working

Not so good for gemstones

Weighs down to 0

Gemmological microscope Type_Approved 5% false negative rate) providingDetails Switchable to 20X or 40X magnification. Built in stone holder to hold the stone at any angle. Flexible lighting system: fixed 45 degree spot (dimmable), 45 degree flatlight, under stage light (dimmable), attachment for dark field illumination (the light 'seeps' in around the edge). Of course, the optical quality is good too, which is what you need for examining inclusions in gemstones. Guarantee: 1 year