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.

Eurotool Presidium Multi Tester For Diamond Moissanite Simulants And Metal

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

💎 Test with confidence, impress with certainty.

ERGONOMIC MASTERY - Rubberized anti-slip grip and 180° multi-view LED display for effortless, ambidextrous use.
DURABLE PORTABLE - Lightweight metal build with no batteries needed—ready to test anytime, anywhere.
ALL IN ONE PRECISION - World’s first tester combining diamond & moissanite detection in a single sleek device.
INSTANT AUTHENTICITY - Pocket-sized powerhouse instantly distinguishes genuine diamonds from simulants like cubic zirconia.
MICRO ACCURACY PROBE - Industry-thinnest 0.6mm retractable tip ensures reliable testing on stones as small as 0.02ct.

The Eurotool Presidium Multi Tester PMuT III is a cutting-edge handheld instrument designed for professionals and enthusiasts to instantly and accurately identify diamonds and moissanites. Featuring the world’s first combined detection technology, a micro-controller-driven system, and an ultra-thin 0.6mm retractable probe tip, it delivers reliable results on stones as small as 0.02ct. Its ergonomic design includes a rubberized grip and a 180-degree multi-angle LED display, making it easy to use for both right and left-handed users without batteries. Ideal for verifying gemstone authenticity against simulants, this compact metal tool is a must-have for anyone serious about gem testing.

Specifications

ASIN	B004QYR8U6
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	534,721 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,616 in Multi Testers 76,473 in Hand Tools (DIY & Tools)
Colour	Black
Customer Reviews	3.7 3.7 out of 5 stars (338)
Date First Available	14 Jan. 2011
Item Package Quantity	1
Item Weight	97 g
Item model number	PMuT III
Material	Metal
Part number	DIA-510.50
Power source type	Handheld
Product Dimensions	8.64 x 6.1 x 20.32 cm; 97 g
Specification met	reach
Style	Modern

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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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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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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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The product quality is outstanding. Exactly what I needed for my work.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Eurotool Presidium Multi Tester for Diamond Moissanite Simulants and Metal

Description

Specifications

Common Questions