PresidiumGem Indicator (PGI) Gem Tester

Q: What is included in purchase? What replacement tip does this device use? Same a Adamus?

This with the tip installed, carrying pouch, and Aluminum Plate.

Q: Can it determine Moissanites from Diamonds?

No this unit will detect moissanite as a diamond

Q: How does it display a ruby? How does it display an emerald?

It’s not accurate at all... It’s working not efficiently

Q: How does it display the identity the gemstones?

You pick the color of the gem stone and then it will give you multiple choices as to what it may be. You will need some basic gemstone knowledge to make this useful.

3.2/5

Product ID: 386129512

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💎Tests 31 gemstone types with color input

📏Thinnest retractable probe tip for precision

🔋USB-powered for on-the-go convenience

Frequently Bought Together

Gem Indicator (PGI) Gem Tester

Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K 14K 18K 24K 999 925 Scrap

Euro Tool Ez Sizer, Bracelet Mandrel, Travel Size | GAU-110.10

Description

💎 Unlock the true value of every gem with pinpoint precision!

GEMSTONE MASTERY - Identify 31 different gemstones with enhanced color input for crystal-clear differentiation.
ERGONOMIC ELEGANCE - Chrome-brushed grip designed for comfort during extended use—style meets function.
POWER YOUR PASSION ANYWHERE - USB port offers flexible power options, perfect for professionals on the move.
PRECISION AT YOUR FINGERTIPS - Ultra-thin retractable probe ensures flawless contact and unmatched accuracy.
READABILITY MEETS EFFICIENCY - Bright digital LED screen delivers instant, easy-to-interpret results every time.

The Presidium Gem Indicator (PGI) is a lightweight, ergonomic gem tester featuring the thinnest retractable thermoelectric probe tip for superior accuracy. It supports testing of 31 different gemstones with a color input function for enhanced differentiation, displays results on a clear digital LED screen, and offers USB power for versatile, portable use.

Specifications

Brand	Presidium
Model Number	PGI
Package Dimensions	21.69 x 14.1 x 6.3 cm; 200 g
Material	stone
Item Weight	200 g

Have a Question? See What Others Asked

What is included in purchase? What replacement tip does this device use? Same a Adamus?

Can it determine Moissanites from Diamonds?

How does it display a ruby? How does it display an emerald?

How does it display the identity the gemstones?

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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