Presidium Diamond Mate-C Electronic Diamond Tester Czech Glass It measures approximately 9 3/8"

It measures approximately 9 3/8" x 10 7/8" (238 x 276 mm)

This is a new set of 2 gem stone inserts that contain 16 removable clear plastic round jars each

The small holes on the right side can be used to hold drill bits

Approximate Length- 6 mm (1/4")

This is a beautiful new 14 karat yellow gold "Baptism" and cross charm

Presidium Diamond Mate-C Electronic Diamond Tester Czech Glass It measures approximately 9 3/8"Pocket sized instrument that instantly verifies the authenticity of diamonds based on their thermal properties. The Presidium Diamond Mate Tester (PDMT) has a retractable probe tip that ensures consistent pressure against the gemstone during testing for more reliable results. With the industrys thinnest probe tip size of 0. 6mm, PDMT tests diamonds as small as 0. 02ct. Test results are instantly indicated by an LED light and continuous audible beep.