Source: magnifying glasses
Magnification while doing jewelry work is extremely helpful. As one of my GIA instructors said, The Better You See, the Better You’ll Be. (all capitalized like that too.)
I’m used to an Opti-visor, but if you don’t care for that, here are some magnifying glasses recommended on the Orchid forum.
http://www.orvis.com/store
Plus they come with their own sturdy protective carrying case. Magnifying Glasses