00:29

Presidium Gem Computer Gauge - Finding Specific Gravity

00:33

Presidium Gem Computer Gauge - Battery Insertion

01:11

Presidiu Electronic Gemstone Gauge - Performing a Test

00:32

Presidium Electronic Gemstone Gauge - Battery Insertion

00:35

Presidium Duo Tester - Checking Functionality of Instrument

01:11

Presidium Duo Tester - Battery Insertion & Switching On

00:57

Presidium Dial Gauge - Perform a Test

00:20

Presidium Dial Gauge - Calibrating the Instrument

00:36

Carat Scale 100 - Battery Insertion

00:47

Presidium Refractive Index Meter II - Battery Insertion & Switching On

00:38

Presidium Diamond Mate - Battery Insertion

00:18

Presidium Diamond Mate - Cleaning The Probe Tip

00:21

Presidium Diamond Mate - Switching On

00:45

Presidium Gem Indicator (PGI) Calibration

01:07

Presidium Gem Indicator (PGI) Changing the Probe Tip

01:41

How to Perform a Test Using the Presidium Gem Indicator (PGI)

00:42

Presidium Gem Indicator (PGI) Library Function

00:57

Powering On the Presidium Gem Indicator (PGI) Using Batteries

00:36

Presidium Gem Indicator (PGI) Sound Settings

00:41

Presidium SRI Testing on Mounted Stones

01:04

Testing Loose Stones Using Presidium Synthetic Ruby Identifier (SRI)

01:27

Presidium Synthetic Ruby Identifier (SRI) - Powering & Starting

00:40

An Introduction to the Synthetic Ruby Identifier (SRI) by Presidium

00:37

Adamas by Presidium - Performing a Test

00:45

Adamas by Presidium - Replacing the Probe Tip

01:05

Adamas by Presidium - Switching On

01:09

Adamas by Presidium - Calibrating the Tip

00:11

Adamas by Presidium - Cleaning the Probe Tip

01:37

Presidium Refractive Index Meter II Software

00:39

Presidium Reflectivity Meter (discontinued in 2013) - How to Perform a Test

01:59

Testing with Presidium Gem Computer Gauge (Weight estimation)

01:59

How to Check Gem Dimensions Using Presidium Gem Computer Gauge (PGCG)

01:46

Testing with Presidium Carat Scale

00:55

How to Authenticate Gemstones With the Presidium Refractive Index Meter

00:42

How to Perform a Test on the Presidium Moissanite Tester II (PMT II)

01:11

Guide on How to Calibrate Presidium Gem Tester

01:08

Conducting Optical Test on Gemstones Using Presidium Duo Tester (PDT II)

01:04

How to Perform a Thermal Test on Gemstones Using Presidium Duo Tester

01:05

How to Operate Presidium Multi Tester III Diamond/Gem Authenticator

00:57

How to Perform Thermal Properties Test on Gems Using Presidium Diamond Mate