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    ASSURE Diamond Verification

    • ASSURE Directory of Diamond Verification Instruments
    • ASSURE Testing Program
    • Diamond Pipeline Integrity
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    QChKAdC

    QChKAdC

    QChKAdC is a desktop diamond verification instrument for loose and mounted diamonds, designed to separate diamonds from synthetic diamonds. QChKAdC is manually operated and requires an operator to interpret the test results.

    Stone Testing Capability

    Weight: 0.003 ct– 0.2 ct
    Size: 0.86 mm-3.7 mm
    Colour: D-J
    Shape: All
    Diamond Simulants: No
    Mounted Stones: Yes (not yet ASSURE Tested)

    Instrument Performance

    The below results demonstrate the performance of the QChKAdC with the ASSURE Core Sample:

    Diamond False Positive Rate (optimal rate 0%): 11.1%
    Diamond Referral Rate (optimal rate 0%): N/A
    Diamond Accuracy Rate (optimal rate 100%): 94.2%

    Speed (stones tested per hour): 731 

    The ASSURE Core Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants. The stones are 0.02ct to 0.20ct in D-J colour.

    The below results demonstrate the performance of the QChKAdC with the ASSURE Smalls Sample:

    Diamond False Positive Rate (optimal rate 0%): 3.7%
    Diamond Referral Rate (optimal rate 0%): N/A
    Diamond Accuracy Rate (optimal rate 100%): 88.6%
    Speed (stones tested per hour): 731

    The ASSURE Smalls Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants. The stones are 0.005 ct to 0.02 ct in D-J colour.

    Instrument Capabilities

    Automated Feed: No
    Automated Results: No
    Automated Dispense: No
    Detect or Refer (Synthetic Diamonds): Detect
    Detect or Refer (Diamond Simulants): N/A
    Multiple Stones at Once: Yes
    Training Required: Yes

    After loading the sample in the aluminium plate, it is exposed to deep UV and its phosphorescence and fluorescence are monitored in the windows. The Phosphorescence of some of the synthetic diamonds can be enhanced when the sample is kept at slightly higher temperature (approx. 60-70 degrees C) which can be easily executed by placing the sample loaded metal plate on a vessel containing hot water.

    QChKAdC makes a measurement and displays one of the following results:

    1. Fl Image (Fluorescence)
    2. P Image (Phosphorescence)

    From the observations and inference regarding Natural/Synthetic is by manual interpretation of the colour of Fluorescence and phosphorescence as per the instruction manual supplied.

    Instrument Specifications

    Size: 35.5 cm (W) x 43 cm (D) x 49 cm (H)
    Weight: 14.5 kg
    Price: 7,700 USD excl. laptop (September 2019)

    Contact information

    quickcheck.co.in/
    enquiry@arotek-inst.com
    +9122 25301119

    ASSURE Tested September 2019
    ASSURE ID: 48396

    Download Instrument Fact Sheet

    Download This Instruments Safety Testing Credentials

    Read the Independent Lab Report

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