10X21 triplet loupe with rim light Digital scales - regular lines - resolution 0.01g 5 x 8cm (7

5 x 8cm (7

a) maximum size is 29

this is a sure-sign that you have a manmade stone (e

AND advanced users can glean further information by rotating the stone to see if either or both of the shadow edges move

Under normal circumstances focusing a 20X is painful

10X21 triplet loupe with rim light Digital scales - regular lines - resolution 0.01g 5 x 8cm (7Details To help you compare the 10X loupes, a summary of this item is shown in blue: SIZE: 10X12 10X13 10X14 10X20 10X21 10X21 10X23 "30X21 (magnification X diameter of lens, mm) OPTICAL QUALITY: basic good VERY GOOD exceptional POWER: 3 of 395 button battery There are also reviews of loupes, click here. Comments Light is as important as magnification, without a good light the best loupe is of little use. Sitting at a desk this isn't a problem, use