What is the best presidium model?

I have the colored stone estimator model and like it very well. The duo meter is good for follow-up testing of colored stones,also. The main thing to remember is that you have to make several tests to verify a gemstone properly, such as a refractometer, etc. Presidium is top of the line.

is there one now with a moissanite tester?

Yes that will the presidium duo model we have it available starting at 349

The red light won't stop flashing to indicate the tester is ready for calibration. What can I try to reset it?

As you stated, the Tester is ready for calibration. Please follow the calibration instructions in the little manual or go to the Presidium website. Good Luck!!!

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Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones

Product ID: 7124422

Details

Brand
Presidium
Color
Presidium Gem
Item dimensions L x W x H
7.8 x 4.5 x
Power Source
Battery
Style
Compact

💎Identifies 16 gemstone types including diamonds & moissanites

📏Industry’s thinnest retractable probe tip for pinpoint accuracy

🧊Assisted Thermal Calibration for precise environment adaptation

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2280440 ₮

Duties & taxes included

In stock

Sold byAmazon MongoliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mongolia.

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Description

💎 Elevate your gem game with precision and style!

GEMSTONE GURU - Effortlessly differentiate 16 types of gemstones, including diamonds and moissanites, with crystal-clear analog readouts.
TRUSTED BY EXPERTS - Industry’s most reliable gem tester, redesigned for portability and durability to keep up with your busy lifestyle.
CALIBRATE LIKE A PRO - Self-adjust your tester with Assisted Thermal Calibration (ATC) for flawless accuracy every time.
USER FRIENDLY MASTERY - Simple, intuitive interface means no steep learning curve—just fast, dependable results.
PRECISION IN YOUR PALM - Compact, sturdy design with the thinnest retractable probe tip ensures you never miss a detail.

The Presidium Instruments Gem Tester II (PGT II) features Assisted Thermal Calibration for easy self-calibration, the industry's thinnest retractable probe tip for precise testing, and the ability to identify 16 types of gemstones including diamonds and moissanites. Compact, durable, and user-friendly, it delivers consistent, reliable results trusted by professionals.

Specifications

ASIN	B000TD3G8Q
Best Sellers Rank	#11,189 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #5 in Jewelry Diamond Testers
Brand Name	Presidium
Color	Presidium Gem Tester Complete Unit
Customer Reviews	4.2 4.2 out of 5 stars (1,329)
Item Dimensions	7.8 x 4.5 x 3.8 inches
Item Type Name	PGT II
Manufacturer	Presidium
Measurement Type	Thermoelectric probe
Model	PGT-II
Part Number	PGT/CSE
Power Source	Battery Powered
Style Name	Compact
UPC	798804941239 730792705646
Unit Count	1.0 Count
Upper Temperature Rating	51 Degrees Celsius
Warranty Description	Please contact the seller directly for warranty information for this product. You may also be able to find warranty information on the manufacturer’s website.

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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Received my product in pristine condition. Great service overall.

1 month ago

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2280440 ₮

Duties & taxes included

In stock

Sold byAmazon MongoliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mongolia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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