---
product_id: 295924183
title: "Professional Diamond Selector II, Gold Testing Pen Portable Electronic Gemstone Tester Tool for Agate Ruby Jade"
brand: "dupeakya"
price: "¥3822"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/295924183-professional-diamond-selector-ii-gold-testing-pen-portable-electronic-gemstone
store_origin: JP
region: Japan
---

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

**Brand:** dupeakya
**Price:** ¥3822
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Professional Diamond Selector II, Gold Testing Pen Portable Electronic Gemstone Tester Tool for Agate Ruby Jade by dupeakya
- **How much does it cost?** ¥3822 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/295924183-professional-diamond-selector-ii-gold-testing-pen-portable-electronic-gemstone)

## Best For

- dupeakya enthusiasts

## Why This Product

- Trusted dupeakya brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07QT8WW82 |
| Best Sellers Rank | #135,340 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #60 in Jewelry Diamond Testers |
| Brand | Dupeakya |
| Color | Black |
| Customer Reviews | 4.0 4.0 out of 5 stars (408) |
| Date First Available | April 17, 2019 |
| Department | unisex-adult |
| Item Weight | 4.2 ounces |
| Item dimensions L x W x H | 6.3 x 1.57 x 0.87 inches |
| Item model number | CZB-12 |
| Manufacturer | Dupeakya |
| Measurement Type | Diamond Test |
| Power Source | Battery Powered |
| Product Dimensions | 6.3 x 1.57 x 0.87 inches |
| Style | Compact |

## Product Details

- **Brand:** Dupeakya
- **Color:** Black
- **Item Weight:** 0.26 Pounds
- **Power Source:** Battery Powered
- **Style:** Compact

## Images

![Professional Diamond Selector II, Gold Testing Pen Portable Electronic Gemstone Tester Tool for Agate Ruby Jade - Image 1](https://m.media-amazon.com/images/I/3171r5L9PDL.jpg)

## Questions & Answers

**Q: Does this work on natural gemstones?**
A: Yes, it works on both artificial gemstones and natural gemstones.

**Q: Does it come with instructions for testing turquoise, rubies and saphires?**
A: 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.

**Q: Does it come with instructions for testing turquoise, rubies and saphires?**
A: I only tests diamonds, it was misleading in the description

**Q: What is the difference between the black and multicolored tool?**
A: 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.

## Frequently Bought Together

- Dupeakya Professional Diamond Tester, Gem Tester Pen Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone
- WELLZEER Keychain Magnet for Testing Brass,Keychain Pocket Magnets for Purse with Strong Magnetic Rare Earth Neodymium,Gold,Silver, Jewelry,Ferrous Metals Test Magnet (2PACK-D12mm)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-26*