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Gemologist Diamond Sizing Carat Gauge Tool

Free shipping on orders over $29.99

$7.99

$ 3 .99 $3.99

In Stock
  • This is a new gem gauge
  • A versatile mounting and stone gauge
  • It has holes for measuring stones and extensions for gauging mountings
  • Marked with carat sizes on one side and millimeters on the other
  • It measures approximately 3 3/4" (95 mm) in diameter


Gem Gauge This is a gem gauge A versatile mounting and stone gaugeIt has holes for measuring stones and extensions for gauging mountings Marked with millimeters sizes It measures approximately 3 3/4" (95 mm) in diameter


Michael Hyman
Reviewed in the United States on July 10, 2024
Accurate sizing and quickly delivered
Liam T
Reviewed in the United States on May 12, 2024
Not what I was expecting but will measure diamonds
T Man
Reviewed in the United States on July 28, 2022
To get a more accurate reading buy a good caliper to measure you can always convert the millimeter reading into carrot size. Or to get true size and weight go to a gemologist for your loose stones and jewelry.
Mark M.
Reviewed in the United States on December 20, 2022
It good for guesstimates
hippy john
Reviewed in the United States on April 7, 2022
I’m not a jeweler but it fulfilled my needs.
Donna Bland
Reviewed in the United States on April 27, 2022
It is what it is.
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