Presidium DUO Tester

Presidium Duo Tester (PDT) is the only comprehensive tool on the market that combines two proven testing methods for gemstones. PDT differentiates,

Jewelry Tools Diamond Testing Tool Presidium Diamond Tester

Jewelry Diamond Test Singapore Presidium Gem tester II Colored

The Presidium DuoTester differs from the Presidium Gem Tester in that the Presidium DuoTester includes a digital reflectivity measurement function.

Presidium PDT Duo Tester-Identify Diamonds & Colored Stones

Presidium Instruments Gem Tester II (PGT II) with

Presidium Duo Tester II (PDT II) - Calibration

The only gemological instrument in the industry that tests gemstones using both thermal and reflectivity testing., Presidium Duo Tester (PDT) is the

PRESIDIUM DUO TESTER PDT-230

Jewelry Diamond Test Singapore Presidium Gem tester II Colored

Product Review Of The Presidium Gem Tester II — Antiques Arena

Presidium Duo Tester-II (PDT-II)