Gesswein carries a full range of gold, diamond, moissanite and gem testers. All sales final on Gold and Diamond Testers (exchange only in case of defect)
From $52
Gold Tester Calibration Discs
$372.95
Presidium® (PGT II) Gem Tester
$385.56
Diamondnite Dual Tester
$170.21
Diamond Tech Pro Diamond Tester
From $25.65
GT Gold Testers