Jewelry Measuring & Testing Tools

Explore Musttool measuring & testing for jewelry making, repair and finishing. Check each product's specifications and included items before choosing.

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Ring sizer kit with a marked mandrel, metal finger gauges, black and white sizing tapes and two spiral adjusters. Overview of the ring sizing kit showing finger gauges, a mandrel, adjustable sizing tapes and thin and thick spiral adjusters.
Ring Sizer Kit | Finger and Ring Size Measurement
$7.98 USD
Handheld diamond and moissanite tester with protective probe cap and packaging box Diamond and moissanite tester features showing LED progress bar probe tip and ready and low battery lights
Diamond and Moissanite Tester for Gemstone Screening
$35.99 USD
Jewelry measuring tool kit with ring mandrel, bracelet measuring cone, eight ring adjusters, four spiral resizers, two sizing belts and blue cloth Jewelry sizing kit feature guide highlighting measurement scales, ring adjusters, spiral accessories, cleaning cloth and sizing belts
Jewelry Measuring Tool Kit for Rings and Bracelets
$18.99 USD
Gray stepped bracelet sizer mandrel with close-up views of placing and measuring a gold bangle. Hands placing a silver bangle over a bracelet sizer mandrel, with a close-up of the size reading.
Bracelet Sizer Mandrel for Measuring and Displaying Jewelry
From $13.70 USD

3 colors available
Black plastic ring sizer mandrel with US and Hong Kong size markings on a white background. Black ring sizer mandrel with an enlarged view of the US and Hong Kong scale near the tapered tip.
Ring Sizer Mandrel for Measuring Existing Rings
$3.99 USD

1 color available
Black adjustable ring sizer on a finger with straight measuring strips and ring wearing examples White ring sizing strip shown flat and looped with a separate ring mandrel comparison
Reusable Ring Sizer for Finding Your Fit Before Buying Rings
$1.99 USD

6 colors available
Black adjustable ring sizer with round magnifying lens over the numeric scale Black ring sizing loop with magnifier and closely spaced numeric markings
Magnifying Ring Sizer for Reading Finger Size Before Buying Rings
$2.99 USD

3 colors available