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Item #:
209376607
Valkynos Professional Diamond Tester Pen with 365nm UV Light & Thermal Sensor Fast 0.5s Detection, Portable Gem Checker for Novice & Experts Battery
90% of respondents would recommend this to a friend
Item #:
209376607
ANG 81
Price Details
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*All items will import from US
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Imported from USA store
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Order now and get it around Sunday, September 27
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Accurately distinguishes real diamonds from common fakes with built-in UV light for enhanced verification.
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What Stands Out
Comprehensive Testing
This kit accurately tests various types of diamonds and simulants using advanced thermal conductivity technology, ensuring reliable results in detecting both real diamonds and cubic zirconia.
Enhanced Visibility
Included 60x loupe and UV light allow for detailed examination of jewelry-quality, giving users the ability to identify inclusions and verify authenticity before purchase or sale.
User-Friendly Alerts
Equipped with LED and audible alerts, this tester provides clear indications of results, making it easy for both novices and professionals to assess gemstone authenticity quickly and confidently.
Product Details
| Product Dimensions (L x W x H) | 7.2 x 1.8 x 0.8 inches (18.3 x 4.6 x 2 cm) |
| Batteries | 1 9V batteries required. (included) |
| Item model number | Mercury-Free Zinc-Carbon Battery 6F22 9V |
| Item Weight | 4 ounces (113.4 grams) |
| Manufacturer | SHENZHEN PKCELL BATTERY CO.,LTD |
| Date First Available | June 20, 2025 |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Jewelry Enthusiasts
Perfect for hobbyists and collectors who want to validate their diamond purchases and assess quality accurately.
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Gemstone Sellers
Ideal for jewelers and sellers who need a reliable tester to confirm the authenticity of diamonds before sale.
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Valuators
Useful for appraisers needing a portable tool for quick assessments of small or mounted jewelry pieces.
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Casual Buyers
Not ideal for those without knowledge of diamonds; this kit requires some skill for accurate testing.
Product Description
Valkynos Professional Diamond Tester Pen with 365nm UV Light & Thermal Sensor Fast 0.5s Detection, Portable Gem Checker for Novice & Experts Battery Included
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the Valkynos Professional Diamond Tester Pen used for?
Answer: The Valkynos Professional Diamond Tester Pen is designed to detect real diamonds and differentiate them from simulants like cubic zirconia. With its advanced 365nm UV light technology and thermal sensor, this pen provides a quick and accurate assessment in just 0.5 seconds, making it ideal for both novices and seasoned gemologists. This tool is particularly useful in jewelry stores, gem shops, or for personal use when evaluating diamond authenticity. Its portability allows users to carry it easily to gem expos or trade shows. -
Question:
How does the UV light feature enhance the diamond testing process?
Answer: The 365nm UV light feature in the Valkynos Diamond Tester Pen helps reveal unique fluorescence characteristics of diamonds. Many genuine diamonds emit a soft blue glow under UV light, which can be a critical factor in confirming authenticity. Using this feature alongside the thermal sensor, you can conduct a thorough analysis, ensuring that you're making informed decisions when purchasing or selling gemstones. This capability is especially valuable in darker settings like pawn shops or during outdoor jewelry assessments. -
Question:
Is the Valkynos Diamond Tester suitable for beginners?
Answer: Yes, the Valkynos Diamond Tester is tailored for both novices and experienced users, thanks to its straightforward design and user-friendly functionality. The quick detection time of 0.5 seconds helps beginners gain confidence without prolonged analysis. Users can quickly learn to differentiate between real diamonds and simulants, which can be particularly useful in educational settings or while growing their gemology knowledge. The clear instructions and portability make it an excellent addition to any beginner’s toolkit. -
Question:
Can this diamond tester differentiate between different types of gemstones?
Answer: While the Valkynos Professional Diamond Tester is primarily designed to identify diamonds and their simulants, it effectively checks for real diamonds. However, for other gemstones, additional tools may be required as this tester focuses largely on thermal conductivity. For gem enthusiasts diving deeper into gemstone identification, it's recommended to utilize supplementary testing methods or consult with professional gemologists for comprehensive assessments. -
Question:
How does the thermal sensor work in the Valkynos Diamond Tester?
Answer: The thermal sensor in the Valkynos Diamond Tester measures the thermal conductivity of the gemstone placed against it. Diamonds have a distinctively high thermal conductivity compared to other materials. Once the gemstone is applied, the tester quickly assesses its thermal response, with genuine diamonds providing a specific reading. This rapid analysis assists users in identifying their stones efficiently, particularly helpful in jewelry appraisal or everyday checks on loose stones. -
Question:
What are the maintenance tips for the Valkynos Diamond Tester?
Answer: To ensure the Valkynos Diamond Tester remains effective, it's advisable to keep the tip clean and free from dust or debris after each use. Storing the tester in a protective case will safeguard it from physical damage and environmental factors. Occasionally checking the batteries and ensuring they are in good condition will also help maintain optimal performance. Following these simple practices will prolong the lifespan of the tester and ensure consistent results during gemstone evaluations. -
Question:
What is the importance of having a portable gem checker?
Answer: Having a portable gem checker like the Valkynos Diamond Tester is crucial for anyone involved in the gemstone market or personal jewelry collection. Its compact design allows easy transport, enabling users to perform authenticity checks on-the-go. This is particularly helpful for professionals attending trade shows, jewelry expos, or appraisers conducting house calls. Being prepared with a reliable gem checker can instill confidence in transactions by assuring buyers and sellers of the items' authenticity. -
Question:
Is it possible to test larger gemstones with the Valkynos Diamond Tester?
Answer: While the Valkynos Diamond Tester is designed for individual gemstone testing, larger stones may present a challenge due to their size and the tester's contact point. However, smaller facets or edges of larger stones can often be tested, allowing users to evaluate parts of the gemstone. For larger pieces, it may be recommended to check multiple sections or consult with a professional gemologist who can utilize additional tools better suited to evaluate the entire gemstone accurately. -
Question:
Where can I buy the Valkynos Professional Diamond Tester Pen?
Answer: You can purchase the Valkynos Professional Diamond Tester Pen from Ubuy. The platform offers a user-friendly shopping experience and ensures that you receive quality products. Ubuy provides a reliable destination for obtaining this professional gem testing tool, allowing enthusiasts and professionals alike to confidently assess diamond authenticity. Be sure to visit Ubuy for more details on availability in Sint Maarten. -
Question:
What features make this diamond tester stand out from competitors?
Answer: The Valkynos Professional Diamond Tester Pen is equipped with advanced features such as a 365nm UV light and a fast 0.5 seconds detection time, which are not commonly found in other testers. The combination of these features enhances its efficiency and accuracy in detecting diamonds compared to competitors. Additionally, its portability and ease of use make it a preferred choice among both novices and experts, positioning it as a versatile tool for on-the-spot gemstone evaluations, whether at home or in professional settings.
Valkynos Diamond Testers Mercury-Free Zinc-Carbon Battery 6F22 9V Editorial Review
Valkynos Professional Diamond Tester Pen with 365nm UV Light & Thermal Sensor Fast 0.5s Detection, Portable Gem Checker for Novice & Experts Battery Included is a reliable tool for jewelry testing, appreciated by users for its ease of use and portability. This diamond tester provides quick and accurate readings, making it an ideal choice for both novices and professionals. Users have praised its lightweight design, and convenience, reinforced by its low maintenance requirement. The clear light indicator aids in result interpretation, confirming its practicality for both personal and commercial jewelry assessments. The tester works swiftly with a mere 0.5 seconds detection time, which stands out for its efficiency in gem checking.
Customer Reviews & Ratings
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Pros
- Lightweight design for easy handling
- Quick detection in just 0.5 seconds
- UV light for enhanced testing accuracy
- User-friendly, great for beginners
- Compact size fits easily in bags
Cons
- May give inconclusive results for certain stones
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
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“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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ANG 81
Order now and get it around Sunday, September 27
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Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Fast and accurate verification of real diamonds vs duplicates.
- Includes a built-in UV light for detecting diamond fluorescence.
- Provides real-time feedback with LED lights and sounds.
- Easy to use with best results for diamonds 0.02 carats and larger.
- Compact design perfect for travel and on-the-spot checks.
- Ideal for home use, collectors, and resellers.
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Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.