Does this work on natural gemstones?

Yes, it works on both artificial gemstones and natural gemstones.

Does it come with instructions for testing turquoise, rubies and saphires?

Hello - This device can only detect authentic diamonds (loud beep, beep, beep) or metals (fast buzzing beeps). Keep in mind that you MUST allow the "lamp" to power up and you MUST be holding the item with your fingers. This device will not determine genuine gemstones (i.e. rubies or sapphires) nor distinctions in metals (i.e. gold, silver or steel). So it will not determine if rubies, sapphires or turquoise are real. The only true way to do that is through a reputable jeweler. They have devices (light refractors) and experience to make those determinations but it may cost you for them to provide that information. I hope this helps.

Does it come with instructions for testing turquoise, rubies and saphires?

I only tests diamonds, it was misleading in the description

What is the difference between the black and multicolored tool?

The difference would be what the tool is capable of measuring. It measures the hardness of the stone. If a real diamond, it will light up and beep. Precious stone light it up in the mid area range.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Dupeakya Professional Diamond Selector II, Gold Testing Pen Portable Electronic Gemstone Tester Tool for Agate Ruby Jade

Product ID: 265343296

Details

Brand
Dupeakya
Colour
Black
Item weight
118 g
Power source
Battery
Style
Modern

🎒Ultra-portable design

💎Instant diamond authenticity

🔊Voice-guided testing

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Test like a pro, wherever you go!

POCKET SIZED POWER - Compact and lightweight—fits effortlessly in your wallet or backpack for on-the-go use.
HANDS FREE GUIDANCE - Voice instructions and audible alerts ensure foolproof testing every time.
COMPLETE TESTING KIT - Includes leather case, test platform, and user manual for professional-grade convenience.
PRECISION AT YOUR FINGERTIPS - Quickly distinguish real diamonds from simulants with pinpoint accuracy.
VERSATILE GEMSTONE COMPATIBILITY - Reliable testing for diamonds, rubies, jade, agate, and other precious stones.

The Dupeakya Professional Diamond Selector II is a portable, battery-powered electronic tester designed to quickly and accurately verify diamond authenticity. Featuring voice instructions and audible alerts, it supports multiple gemstones including ruby, jade, and agate. Compact and lightweight, it comes with a leather case and test platform, making it an essential tool for jewelers and enthusiasts seeking reliable, on-the-spot gemstone verification.

Specifications

ASIN	B07QT8WW82
Brand Name	Dupeakya
Color	Black
Compatible Devices	9v battery
Customer Reviews	3.0 3.0 out of 5 stars (4)
Item Dimensions	16 x 4 x 2.2 centimeters
Item Type Name	Diamond Tester 11
Item Weight	118 g
Manufacturer	Dupeakya
Measurement Type	Diamond Test
Minimum Operating Voltage	9 Volts (DC)
Model	CZB-12
Part Number	2020ABCPXGJ0331US
Power Source	Battery Powered
Style Name	Modern
Unit Count	1 Count

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