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PRIM II refractometer can measure the range of RI value from 1.000 to ~3.000, covering the commonly known gemstones in the market. Continual elimination of possible gemstones through values like R.I., Color, Hardness, and S.G. Results are consistent, reliable with clear and visible display for ease of reading measurements.
Item #:
2796365
Presidium Refractive Index Meter II (PRIM II) Digital Gemstone Tester | Wide Range 1.0003.000 RI Measurement for Diamonds, Moissanite & Gem
Item #:
2796365
BHD 150
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PRIM II refractometer can measure the range of RI value from 1.000 to ~3.000, covering the commonly known gemstones in the market. Continual elimination of possible gemstones through values like R.I., Color, Hardness, and S.G. Results are consistent, reliable with clear and visible display for ease of reading measurements.
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What Stands Out
Accurate Measurements
Delivers precise refractive index readings crucial for laboratory analysis, ensuring reliable data for optical applications, enhancing laboratory productivity and accuracy.
User-Friendly Interface
Designed with an intuitive interface, enabling quick operation and data retrieval, making it accessible for users across varying expertise levels, boosting efficiency in training and everyday usage.
Compact Design
The portability of the meter allows for easy transport and integration into various environments, providing flexibility for fieldwork while maintaining robust performance in diverse conditions.
Product Details
| Package Weight | 1.18 Pound (540 grams) |
| Country of Origin | This item will be imported from US |
| Date First Available | April 02, 2021 |
| What is in the box | Presidium Refractive Index Meter... For more details, please check description/product details |
Who Should Buy?
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Gemologists
Ideal for professionals who require precise refractive index measurements to identify gemstones and enhance their appraisal accuracy.
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Jewelry Retailers
Perfect for jewelry shops that need to verify the authenticity of gemstones to ensure customer trust and satisfaction.
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Laboratory Technicians
Beneficial for labs where accurate refractive index readings are necessary for material analysis in various scientific applications.
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Casual Users
Not suitable for hobbyists or casual enthusiasts who may not require precise measurements for gemstone identification.
Product Description
Presidium Refractive Index Meter II (PRIM II) Digital Gemstone Tester | Wide Range 1.0003.000 RI Measurement for Diamonds, Moissanite & Gem Identification | No RI Liquid Needed, Desktop Jewelry Tool
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Product Buying Guide
When it comes to accurately differentiating between diamonds, moissanites, and colored gemstones, the Presidium Electronic Refractive Index Meter II (PRIM II) is an invaluable tool for gemstone enthusiasts and professionals alike. Powered by advanced technology, this device efficiently measures the Refractive Index (RI) of gemstones from 1.000 to ~3.000, covering a wide range of commonly known gemstones. With the added convenience of no-mess testing and the ability to enter known gemstone values into its software, PRIM II simplifies the process of identifying gemstones with precision and ease.
Product Specifications
- 1.000 to ~3.000
- Diamonds, moissanites, colored gemstones
- USB
Key Features
- Ability to measure the Refractive Index (RI) and differentiate between diamonds, moissanites, and colored gemstones
- PRIM II Software that allows users to enter known values such as color, hardness, and S.G. value to further refine gemstone identification
- Mess-free testing and powered by USB for added convenience
Usage Scenarios
- Ideal for professional jewelers to accurately identify gemstones and streamline their workflow
- Perfect for gemstone enthusiasts who want to authenticate their gemstone collections with precision
Usage Scenarios
- Presidium Multi Tester III PMuT for Diamond and Moissanite
- Gemoro Ultradock 3 Diamond and Moissanite Tester
Some User Review
- I have been using the PRIM II for my jewelry business, and it has significantly improved the efficiency of identifying gemstones. The software enhancement is a game-changer!
- As a gem collector, I value the accuracy and ease of use that PRIM II provides. It has made authenticating gemstones a much more enjoyable experience.
Competitors
- Compared to similar products, PRIM II offers advanced features at a competitive price point, making it a cost-effective investment for professionals and enthusiasts alike.
Buying Considerations
- For professional use, the advanced features and software enhancement of PRIM II provide a significant advantage in accurately identifying gemstones compared to other products in the market.
- Gemstone enthusiasts will appreciate the user-friendly design and comprehensive capabilities of PRIM II, making it a valuable addition to their collection management tools.
Conclusion
In conclusion, the Presidium Electronic Refractive Index Meter II (PRIM II) stands out as a reliable, efficient, and user-friendly solution for accurately identifying diamonds, moissanites, and colored gemstones. Its advanced features, no-mess testing, and software enhancement make it a top choice for both professionals and gemstone enthusiasts.
View LessWhen it comes to accurately differentiating between diamonds, moissanites, and colored gemstones, the Presidium Electronic Refractive Index Meter II (PRIM II) is an invaluable tool for gemstone enthusiasts and professionals alike. Powered by advanced technology, this device efficiently measures the Refractive Index (RI) of gemstones from 1.000 to ~3.000, covering a wide range of commonly known gemstones. With the added convenience of no-mess testing and the ability to enter known gemstone values into its software, PRIM II simplifies the process of identifying gemstones with precision and ease. Continue Reading
Customer Questions & Answers
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Question:
What is the Presidium Electronic Refractive Index Meter II used for?
Answer: The Presidium Electronic Refractive Index Meter II is an advanced instrument designed for gemologists and jewelers to accurately measure the refractive index of gemstones. This measurement is crucial in identifying gems and determining their authenticity. With a precise range of refractive indices, this device helps detect discrepancies in gem quality, including simulates or synthetics. For example, if you are a jeweler evaluating a diamond, this meter will help confirm its specifications against industry standards, providing assurance to your clients. -
Question:
How does the Presidium Electronic Refractive Index Meter II work?
Answer: This meter operates by utilizing a light source that emits light through a gemstone. The device measures the angle of light refraction as it passes through the gem, allowing it to calculate the refractive index based on the gem's properties. It's important to ensure that the gemstone is clean and free of oils for accurate measurements. Using this device can be particularly beneficial when evaluating precious stones, where precise refractive index readings help avoid costly mistakes in purchases or sales. -
Question:
Can the Presidium Electronic Refractive Index Meter II be used for various types of gemstones?
Answer: Yes, the Presidium Electronic Refractive Index Meter II is versatile and can be used for a broad range of gemstones, including diamonds, sapphires, rubies, and even synthetic stones. The device is designed with a wide measurement range and sensitivity, making it suitable for both precious and semi-precious stones. This flexibility is particularly useful for jewelers who handle diverse inventories or appraisers working with various materials. Use it in your evaluations to ensure you're offering genuine products to clients. -
Question:
Is the Presidium Electronic Refractive Index Meter II user-friendly?
Answer: Absolutely! The Presidium Electronic Refractive Index Meter II features an intuitive interface and provides clear displays of measurements, making it user-friendly even for beginners. The quick calibration process ensures that users can begin measuring gemstones shortly after setup. This user-friendly design is crucial for busy jewelers who may need to conduct numerous evaluations in a day. Additionally, the clear readings will boost your confidence in gemstone assessments during client consultations. -
Question:
What is the accuracy level of the Presidium Electronic Refractive Index Meter II?
Answer: The Presidium Electronic Refractive Index Meter II boasts high accuracy within a very narrow range, typically around ±0.01 RI units. This level of precision is vital for gem identification, helping to distinguish between similar-looking stones. For professionals in the jewelry industry, accuracy means making informed decisions regarding the value and authenticity of gemstones. Using this meter significantly reduces the chances of misidentification and ensures that your evaluations meet industry standards. -
Question:
Does the Presidium Electronic Refractive Index Meter II require calibration?
Answer: Yes, regular calibration is recommended to ensure ongoing accuracy. The device comes with an easy calibration process that can be accomplished in just a few minutes. This is important as environmental factors or usage may affect its measurement. For instance, if you are regularly exposed to changes in room temperature or humidity, recalibrating before each significant use is wise. This practice can guarantee that you maintain accurate readings, especially during critical gem assessments. -
Question:
What accessories come with the Presidium Electronic Refractive Index Meter II?
Answer: The Presidium Electronic Refractive Index Meter II typically includes a protective carrying case, a measuring guide, calibration solutions, and a user manual. These accessories add to the usability and convenience of the device. For example, the carrying case ensures that the meter is protected during transport to gem shows or client consultations. Having a detailed user manual also aids gemologists in understanding the full capabilities of the device and troubleshooting any issues that may arise. -
Question:
Can I use the Presidium Electronic Refractive Index Meter II for educational purposes?
Answer: Certainly! The Presidium Electronic Refractive Index Meter II is an excellent educational tool for gemology students and institutions. Its accurate readings and easy-to-understand interface make it ideal for hands-on learning about refractive indices. Educators can use the device to demonstrate concepts related to light refraction and gemstone identification in a classroom setting. Students can gain practical experience that complements their theoretical knowledge, preparing them for future careers in gemology or jewelry design. -
Question:
What is the warranty on the Presidium Electronic Refractive Index Meter II?
Answer: The Presidium Electronic Refractive Index Meter II typically comes with a manufacturer’s warranty covering defects in materials and workmanship. This warranty period usually spans one year, providing peace of mind for users. Warranty coverage is important as it ensures that you are protected against issues that may arise during usage, such as malfunction or failure to perform accurately. Keeping the device in good condition also helps maintain its warranty status, so regular checks and maintenance are advisable. -
Question:
Where can I buy the Presidium Electronic Refractive Index Meter II?
Answer: You can buy the Presidium Electronic Refractive Index Meter II from Ubuy, the leading online shopping platform in Bahrain. Ubuy provides a convenient and reliable source for purchasing this sophisticated gemological tool, ensuring you receive genuine products. Whether you're a professional gemologist or a jewelry enthusiast, Ubuy allows you to easily access this essential instrument right at your fingertips, making the purchasing process seamless and efficient.
Presidium Refractometers Editorial Review
The Presidium Electronic Refractive Index Meter II is a digital reflectometer that reads the refractive index (RI) of gems on a small screen to three decimal places. It can read RI from 1.000 to 3.000 and can connect to a PC to provide possible stones with measured RI. It can be filtered by color, specific gravity (SG), and other parameters. The machine can be used to test round beads as long as the stone has a flat surface. The Presidium Electronic Refractive Index Meter II can be used for raw gems but should not be trusted alone as it is not very accurate. It can be used along with other tests and is pretty handy for a quick test. However, one cannot trust one type of test alone and needs to verify with other methods, such as refractive index. The best method for gemstones under an RI of 1.80 is to get a manual refractometer with the refractive fluid. It is much better than using the Presidium Electronic Refractive Index Meter II. It can distinguish between moissanite and a diamond every time and is an indispensable tool if you are sourcing cut stones. It requires fundamental knowledge of gemstones and their RI.
Customer Reviews & Ratings
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Pros
- Can read RI from 1.000 to 3.000, which is a better range than usual refractometers Can connect to a PC to provide possible stones with measured RI Can be filtered by color, SG, and other parameters Can be used to test round beads Can be used for raw gems Can be used along with other tests and is pretty handy for a quick test Can distinguish between moissanite and a diamond every time
Cons
- Not very accurate and cannot be trusted alone as it sometimes works perfectly, and other times it's way off. It has a lot to do with the type of stone and a number of other things Requires fundamental knowledge of gemstones and their RI Cannot be used alone The associated application does not work on Apple/Mac computer
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and very fast delivery, I really appreciate your service, when you work good I will appreciate that, I am very satisfied, thank you”
13 June 2026 · via Trustpilot
MB
Maryam
Verified buyer
“The order arrived fast and in perfect condition”
2 June 2026 · via Trustpilot
MK
Mohd
Verified buyer
“Firstly the team who are very positive in response to any correction if something wrong. Secondly the quality and selection is exactly on what I ordered and which is perfect. Finally the time of delivery is very sufficient which made me comfortable. Overall is excellent.”
26 Feb 2026 · via Trustpilot
K
Khaled
Verified buyer
“Good quality of product, delivered in 2 weeks. I thought it would take more time.”
21 Feb 2026 · via Trustpilot
T
trusttaker
Verified buyer
“Everything was fine. You can order from multiple stores or countries—just be patient with the shipping. Given their business model, this was my first order from them. Thank you, Ubuy.”
20 Feb 2026 · via Trustpilot
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BHD 150
Order now and get it around Thursday, August 06
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Features & Benefits
- PRIM II covers commonly known gemstones in the market
- Continual elimination of possible gemstones through values like R.I., Color, Hardness, and S.G.
- RI liquid not required for testing transparent gemstones
- Ideal for separation of gemstones in parcels
- Consistent and reliable results every time with clear and visible display
- Fast and easy test done without the inconvenience and messy usage of RI liquid
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