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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💼 Elevate your gem game with precision and style!

DURABLE BUILD - Crafted from high-quality plastic for long-lasting performance.
VERSATILE USE - Ideal for testing diamonds, gems, and precious metals.
PORTABLE DESIGN - Fits perfectly in your wallet or backpack for on-the-go testing.
PRECISION TESTING - Quickly distinguish real diamonds from fakes with ease.
USER FRIENDLY INTERFACE - Voice instructions guide you through the testing process.

The Dupeakya Professional Diamond Selector II is a portable electronic gemstone tester designed to accurately identify real diamonds from simulated stones. Featuring a user-friendly interface with voice instructions, this compact device is perfect for both professionals and enthusiasts. It operates on a DC9V battery (not included) and comes with a leather case and test platform, making it an essential tool for anyone dealing with jewelry and precious metals.

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TrustScore 4.5 | 7,300+ reviews

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Color	Black
Size	Diamond Tester 2
Style	Modern
Display Type	LCD
Material Type	Plastic
Number of Items	1
Power Source	Battery Powered
Batteries Included?	No
Brand	Dupeakya
Department	unisex-adult
Manufacturer	Dupeakya
Item model number	CZB-12
Product Dimensions	16 x 4 x 2.2 cm; 117.93 g
ASIN	B07QT8WW82

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

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