It is impossible to accurately examine or cut and polish a stone without good magnification. We suggest using 10X or higher magnification for faceting so you can see if all the fine scratches have been eliminated during polishing.
Closing one eye, or squinting while looking through loupes can cause eye strain. To reduce eye strain, keep both eyes open when looking through the loupe. This may take a while to get used to, but it can prevent you from getting headaches. After all, faceting is supposed to be fun.
B&L 11X Glasses Loupe - $49.95
Bausch and Lomb 11X Glasses Loupe
The Bausch and Lomb 11X Loupe has two lenses (4X and 7X) that combine to create 11X magnification. The quality of the lenses is good, but what I like best about the Bausch and Lomb Glasses Loupe is that it attaches to your glasses. This eliminates the "where-did-I-put-my-loupe-down" syndrome that can eat up more time on cutting a stone than the whole roughing-in procedure.
Some of my faceting students who don't wear glasses purchase cheap
drug store glasses and remove the lenses so they can use the Bausch and Lomb Glasses
Hasting 10X Triplet Loupes
These 10X triplets feature a combination of three high quality lenses providing superior optical performance. The wide 21mm and 20.5mm apertures of these loupes causes less eye strain than smaller aperture loupes. The difference between these Hastings 10X loupes is the color of the plating and 0.5mm in diameter. The achromatic lenses in these loupes are made in Japan and the loupes are assembled in China. Each Hastings 10X loupe comes complete with a carrying case.
LoupeV309-23C - $15.95
10X Coddington Magnifier
This Japanese made loupe features a 10X magnification doublet lens mounted in a chrome plated case. It provides an extra large 23mm aperture for easy viewing and eyestrain relief during periods of extended use.
Schneider L1 10X Loupe
A neck strap is easily attached to the loupe for ease of use. Shown to the