Review on 6-Piece Mini 30X 21mm Jeweler's Loupe Magnifier Magnifying Glass Set in Silver with Box for Jewelry by Kelsey Brown

This is NOT a set of "30x Jewelry Loupes" but it is a fairly sturdy and inexpensive loupe (I paid $12.15 for 6) that should stand up to moderately heavy use . To me, to measure "power" a focused image of a 7mm long object fills a 21mm diameter lens, so simple math says that's a 3x magnification. A little over $2 each, they are inexpensive enough that I can put them anywhere in my house that I thought I might need a 3x magnifier and still have some left over to use as holiday stockings . (Just tell everyone you give it to that this is actually a 3X loupe, not a 30X loupe as the label mistakenly claims.)