**DISCONTINUED**This gemstone gauge measures dimensions of gemstone with great accuracy. It will also calculate carat weight of diamonds, emeralds, ruby, sapphire (and other corrundums), and alexandrite. Works on rounds, ovals, marquise, square, pear and cabochons. It will also allow for corrections on less than ideal cut stones. The construction of this gauge is truly exceptional. The jaws are designed for measuring mounted stones with even hard to reach settings. Loose stones can be laid in the base section where you can measure diameter, depth, length and width. When the instrument is laid down on a flat surface, the left portion sits flush with the surface and the jaws act like a tweezer and can pick up or measure size of a stone less than one half of a millimeter. Great for sorting diamonds and calibrating for size. Made in Japan by Mitutoyo.

*:for replacements.

*:Discontinued. Please see related items below

Case Included:Yes