A device for weighing gemstone, and diamonds that is provided with a piezoelectric transducer and can digitally read-out the determination.
See Alexandrite Tsarstone collectors guide, Definition of Electronic balance, http://w.alexandrite.com/viewpage.html?id=GG-090-00002 (A device for weighing gemstone, and diamonds that is provided with a piezoelectric transducer and can digitally read-out the determination.) (as of Apr. 06, 2026, 15:30 GMT).