copy of Mechanical nickel gauge for measuring diamonds

Digital caliper for round brilliant cut gemstones.
Converts millimeters to carats
For round gems, brilliant cut
Easy to read digital display (mm/ct)
Convenient sliding mechanism
Included holder for set gems
Accuracy 1/100mm
Reading from 0 to 25 mm in 0.01 mm steps
Reset to 0 by simply pressing a key
Automatic shutdown
Protective case
Powered by CR2032 lithium batteries (included)
Including extension tip
minimum order: 1 ST
Battery and/or adapter operation
Presidium brand
Size 1 - Length (mm) 97
Size 2 - Width (mm) 61
Size 3 - Height (mm) 16
Weight (g) 360
Watches & Jewelery Sector
Hand type
I use colored gemstones