Presidium
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Gem Indicator (PGI) Gem Tester
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Gem Indicator (PGI) Gem Tester
The Presidium Gem Indicator, the only handheld tester in the industry specifically for colored gemstones... this smart thermal tester also comes with the Presidium patented refined changeable probe tip, which ensures minimal equipment downtime.
Gem Indicator (PGI) Gem Tester
Item #: 2787819

Gem Indicator (PGI) Gem Tester

Item #: 2787819

AED 1504

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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    Order now and get it around Saturday, August 22
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    The Presidium Gem Indicator, the only handheld tester in the industry specifically for colored gemstones... this smart thermal tester also comes with the Presidium patented refined changeable probe tip, which ensures minimal equipment downtime.
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    What Stands Out

    Advanced Technology
    Utilizes cutting-edge technology to accurately identify and classify gemstones, ensuring reliable results for both novices and experts.
    User-Friendly Design
    Designed with simplicity in mind, it features a clear display and intuitive controls, making it accessible for all skill levels.
    Versatile Applications
    Perfect for jewelers, gemologists, and hobbyists, the PGI Gem Tester can be used in various settings, from professional environments to personal collections.

    Product Details

    Get accurate results with the Presidium Gem Indicator PGI Handheld Tester. Identify diamonds and colored gemstones easily. Shop now at Ubuy UAE!
    • Thinnest retractable probe tip for enhanced accuracy
    • Versatile and reliable with color input function
    • Easy to read results on a clear digital LED screen
    • Tests an extended range of 31 different gemstones
    • Ergonomic grip with sleek chrome-brushed design
    • USB port for alternative power and handheld for convenience
    Package Weight1.27 Pound

    Who Should Buy?

    Suitable For
    • Jewelry Professionals

      Ideal for gemologists and jewelers who need a reliable tool for authenticating and grading gemstones.

    • Hobbyist Collectors

      Great for amateur gem enthusiasts seeking to evaluate their gemstone collection effectively.

    • Retail Gem Sellers

      Beneficial for retailers in ensuring the authenticity of gems during sales and customer consultations.

    Not Suitable For
    • Casual Buyers

      Not suitable for individuals without gem testing knowledge who may misuse the device incorrectly.

    Product Description

    Gem Indicator (PGI) Gem Tester

    Have any Query? Chat with us

    Customer Questions & Answers

    • Question: What is the Gem Indicator PGI Gem Tester used for?

      Answer: The Gem Indicator PGI Gem Tester is a professional-grade tool designed to identify and evaluate gemstones by measuring their refractive index. This tester assists gemologists, jewelers, and enthusiasts in determining the authenticity of gemstones, helping to distinguish between natural and synthetic stones. For example, it can provide clear insights when evaluating diamonds versus substitutes like cubic zirconia, ensuring you're informed about your purchases.
    • Question: How accurate is the Gem Indicator PGI Gem Tester?

      Answer: The Gem Indicator PGI Gem Tester is renowned for its high accuracy in refractive index measurements, often reaching up to 0.01 precision. This level of accuracy is essential for professionals who depend on precise readings during evaluations. For instance, gemologists can confidently make assessments and provide assessments with professional integrity, as even minor discrepancies in refractive indices could indicate different gemstone types.
    • Question: Is the Gem Indicator PGI Gem Tester suitable for beginners?

      Answer: Yes, the Gem Indicator PGI Gem Tester is suitable for beginners as well as advanced gemologists. It features user-friendly instructions and a straightforward design, making it accessible for those new to gemstone testing. Beginners can easily learn to use it effectively, making it an excellent tool for those starting their journey in gemology or jewelry design.
    • Question: Can the Gem Indicator PGI Gem Tester differentiate between synthetic and natural gems?

      Answer: Absolutely, the Gem Indicator PGI Gem Tester is capable of distinguishing between synthetic and natural gems by analyzing their refractive indices. Synthetic gemstones often have characteristics that differ slightly from their natural counterparts. For example, using this tester, one can identify a synthetic diamond versus a natural diamond, which is crucial for ensuring value and authenticity in gemstone transactions.
    • Question: What types of gemstones can the Gem Indicator PGI Gem Tester evaluate?

      Answer: The Gem Indicator PGI Gem Tester can evaluate a wide range of gemstones, including diamonds, sapphires, rubies, and emeralds, among others. It is beneficial for both common and rare stones, providing clarity about their identity and authenticity. For jewelers, this means they can confidently price gemstones and provide accurate information to clients regarding their selections.
    • Question: Does the Gem Indicator PGI Gem Tester require any special maintenance?

      Answer: The Gem Indicator PGI Gem Tester requires minimal maintenance to ensure optimal performance. Users should regularly clean the lens and calibration plate to maintain accuracy and avoid contamination. By keeping it in a protective case when not in use, the device can withstand daily wear and tear, making it a reliable companion for gemologists and jewelers alike.
    • Question: What features make the Gem Indicator PGI Gem Tester stand out?

      Answer: Key features of the Gem Indicator PGI Gem Tester include its digital display, compact design, and ability to test various gemstones efficiently. Its portability allows for on-the-go testing, making it a favorite among professionals who travel for gem evaluations. Additionally, the tester's intuitive interface ensures that users can quickly interpret results, enhancing the overall user experience.
    • Question: Is training available for using the Gem Indicator PGI Gem Tester?

      Answer: While the Gem Indicator PGI Gem Tester comes with a user manual, many organizations and gemology schools offer training courses that include its usage. These training sessions often provide practical insights and hands-on experiences, allowing users to grasp the intricacies of gem testing. Engaging in such training can significantly enhance your confidence and skill level in gemstone evaluation.
    • Question: What are the implications of using the Gem Indicator PGI Gem Tester in the jewelry business?

      Answer: Using the Gem Indicator PGI Gem Tester in the jewelry business can enhance customer trust and satisfaction. Accurate testing of gemstones allows jewelers to provide verifiable information and increase transparency concerning the quality and origin of the gems they sell. This can lead to a loyal customer base and higher sales, as clients appreciate confidence in their purchases.
    • Question: Where can I buy the Gem Indicator PGI Gem Tester in UAE?

      Answer: You can purchase the Gem Indicator PGI Gem Tester in UAE through Ubuy, an online platform known for a wide array of products including specialized tools like gem testers. Ubuy provides a user-friendly shopping experience and access to useful information about each product, helping you make an informed decision before your purchase.

    Presidium Gold Testers Editorial Review

    Presidium Instruments Gem Indicator PGI Handheld Tester is a compact and portable device that can be used to identify diamonds as well as common colored gemstones such as emeralds and rubies. It comes with a calibration disk, USB cable, user handbook, and protective carrying case. According to the FAQ section, the device is not accurate in displaying rubies and emeralds, and it cannot determine moissanites from diamonds. However, it can identify rough gemstones based on their characteristics such as hardness and density. There are mixed reviews as some customers claim that the device gave inConsistent readings, was defective, or did not identify any gems accurately. Still, other customers found that the machine was easy to use and worked well in identifying gemstones.

    Customer Reviews & Ratings

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    Pros

    • Portable and compact
    • Can identify rough gemstones based on their characteristics
    • Comes with calibration disk, USB cable, user handbook, and protective carrying case

    Cons

    • Inaccurate in displaying rubies and emeralds

    Platform Trust & Buyer Confidence

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    4.1/5 153 reviews
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    HB
    Haitham
    Verified buyer

    “Excellent experience”

    11 June 2026 · via Trustpilot
    RF
    Rasanga
    Verified buyer

    “I had an excellent experience with Ubuy UAE. I ordered a product from the USA, and the website clearly mentioned that deliveries might be delayed due to the current situation in the Middle East. Ubuy provided great value, transparent communication, and reliable delivery. Thank you, Ubuy UAE, for a fantastic shopping experience!”

    17 June 2026 · via Trustpilot
    SC
    Simon
    Verified buyer

    “On time delivery and great product at a really great price!”

    8 April 2026 · via Trustpilot
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    Vladislav
    Verified buyer

    “Fast delivery. Quality as expected.”

    03-Jul-26 · via Trustpilot
    HD
    Hope
    Verified buyer

    “Excellent experience! The service was top-notch, reliable, and very fast. I am completely satisfied with their professionalism and highly recommend Ubuy UAE to everyone.”

    02-Jul-26 · 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.
    • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

    AED 1504

    Order now and get it around Saturday, August 22

    QTY:

    Secured transactionsecured 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

    • Indicates up to 31 different types of colored gems based on their thermal conductivity
    • Features a color input function that allows users to select from a range of 12 common colors
    • Easy-to-read clear digital LED screen
    • Patented refined probe tip with an industry's thinnest retractable probe tip (0.45mm)
    • Powered by 3 x AAA alkaline batteries (approximately 3 hours of continuous use)
    • Comes with a protective carrying case

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