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Item #:
81456910
PRESIDIUM Gem Tester II Colored Stone and Diamond/Moissanite Tester - NEW IN BOX
Item #:
81456910
GMD 29492
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
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Order now and get it around Tuesday, August 25
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With consistent and reliable results every time, this Presidium Gem Tester II can differentiate between 15 types of gemstones.
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What Stands Out
Dual Functionality
Efficiently tests both colored stones and diamonds/moissanite, providing versatility for jewelers and gem enthusiasts in a single device.
User-Friendly Interface
Compact design with clear readings, making it accessible for professionals and hobbyists alike, ensuring precise results with minimal effort.
Accurate Results
Delivers reliable identification of gemstones, helping users avoid costly mistakes and enhancing their confidence in buying or selling precious stones.
Product Details
| Seller Warranty | Yes |
| Color | Black |
| Material | Plastic |
| Set Includes | Zipped Case, Probe, AC Adapter |
| MPN | PGT II |
| Country of Origin | Singapore |
| California Prop 65 Warning | WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. |
| UPC | 0798804941239 |
| Brand | Presidium |
| Type | Tester |
| Suitable For | Identification/Testing |
| Item Weight | 1.5 lbs (680 grams) |
Who Should Buy?
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Jewelry Professionals
Ideal for gemologists and jewelers needing accurate testing for diamonds, moissanite, and colored stones.
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Hobbyist Collectors
Perfect for gemstone enthusiasts wanting to accurately identify and authenticate their collections.
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Gift Buyers
Useful for individuals purchasing gifts who want assurance of the authenticity of gemstones and jewelry.
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Casual Buyers
Not suitable for those who only occasionally purchase jewelry without needing in-depth testing capabilities.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What gemstones can the Presidium Gem Tester II identify?
Answer: It can identify diamonds, moissanites, and most colored, polished, and unpolished gemstones. -
Question:
How long does it take to warm up the gem tester?
Answer: It has a warm-up time of just 20 seconds. -
Question:
Is the probe easy to use?
Answer: Yes, it comes with a detachable probe that ensures constant pressure for accurate testing.
presidium Editorial Review
**Editorial Review of the PRESIDIUM Gem Tester II** The PRESIDIUM Gem Tester II is designed for gem enthusiasts and professionals who seek validation of gemstone authenticity. Customer experiences with the tester have been noticeably varied; while some users praise its accuracy and effectiveness, others have expressed dissatisfaction due to performance issues. For knowledgeable users who can discern between different gemstones, the tester provides an essential tool, allowing them to confirm their suspicions about a stone's identity. Reviewers frequently note that familiarity with gemstones is crucial for effective use. Many recommend practicing with known true gems to fully understand the device’s readings, as incorrect readings can cause confusion for novices. On the other hand, significant reliability concerns have emerged from user feedback, especially regarding the functionality of the device over time. Reports indicate that some units malfunction shortly after purchase, with users experiencing issues such as stuck readings that fail to change based on the tested stone. This inConsistency has led to frustration for several customers who expected a longer-lasting device given its price. Despite the operational challenges that some users faced, those with substantial gem knowledge seem to find value in the tester, citing its potential as a reliable tool for confirming the nature of their gemstones. Overall, the PRESIDIUM Gem Tester II shows promise for those who are well-acquainted with gemology but may fail to meet expectations for less experienced users or in cases of product malfunctions. **
Customer Reviews & Ratings
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Pros
- Accurate readings for users familiar with gemology.
- Provides confirmation of stone authenticity.
- Effective for experienced gem collectors.
Cons
- InConsistent readings in certain units can lead to confusion.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 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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GMD 29492
Order now and get it around Tuesday, August 25
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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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
- Tests diamonds, moissanites, and various gemstones.
- Just 20 seconds warm-up time.
- Accurate for carat sizes as small as 0.02ct.
- Features a detachable probe for constant pressure.
- Includes a metal alert buzzer for testing assurance.
- Comes with a protective carrying case and 1-year warranty.
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