how do you calibrate it?

Calibration is not needed as far as I know

Placing on diamonds and having no response, what does that mean?

I have used this unit and had the same response on known diamonds. Sometimes the stone is dirty and needs a cleaning. This can throw off results. Also, my unit is getting returned when I have a suitable replacement. It sometimes takes 3 or more tries to get it to register. Clean the stone and try touching it with a firm but not point grinding pressure a few times and if it doesn't work try another tester. Assuming of course you know the diamond is real.

How can I get a replacement tip?

You can get it replaced from manufacturer, fill out the return form.

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Presidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants

Presidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants

Product ID: 3228232

💎Tests diamonds & moissanites

📏0.6mm thinnest retractable probe tip

🔋Powered by 3 AAA batteries

COP 1711255

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Test smarter, not harder — the ultimate gem detective’s sidekick!

360 LED DISPLAY - Multi-angle viewing for effortless readability by right or left-handed users
ALL IN ONE PRECISION - The only tester combining diamond & moissanite detection in one sleek device
ERGONOMIC PORTABLE - Rubberized anti-slip grip with lightweight design and carrying case for on-the-go pros
BATTERY POWERED FREEDOM - Runs on 3 AAA batteries for cordless convenience wherever your expertise takes you
INDUSTRY THINNEST PROBE - 0.6mm retractable tip ensures reliable testing on stones as small as 0.02ct

The Presidium Multi Tester III is a pioneering handheld instrument designed to accurately test colorless diamonds, moissanites, and diamond simulants. Featuring the industry’s thinnest 0.6mm retractable probe tip, a 180-degree multi-view LED display, and powered by 3 AAA batteries, it offers ergonomic portability and all-in-one functionality for professionals and enthusiasts seeking reliable gemstone identification.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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.

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COP 1711255

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Presidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants

Description

Specifications

Common Questions