×

Assure Directory

J-Certain by Massive Tech Lab

Instrument Description

J-Certain is a desktop diamond verification instrument for loose and mounted Diamonds. J-Certain is designed to separate synthetic diamonds from diamonds. J-Certain is manually operated but gives an automatic test result. J-Certain is suitable for an environment where you need to test both mounted and loose diamonds e.g. dealers, diamond and jewellery manufacturers, retailers, buyers and gemmological laboratories. ASSURE ID: 94666.

 

Instrument Specs

Size: 43 cm (W) x 34 cm (D) x 52 cm (H)

Weight: 22 kg

Price: 13,999 USD (May 2019)

View Instrument Details

What Stones Can Be Tested?

Weight of stones: 0.002 ct-10 ct

Size of stones: 1mm+

Colour of stones: D-Z

Shape of stones: All

Diamond simulants: No

Jewellery: Yes (please note this has not yet been tested by the ASSURE Program)

 

Capabilities according to Massive Tech Lab

 

Instrument Functionality

Automatically feed the stones? No

Automatically interpret the results? No

Automatically dispense the stones? No

Detect or refer synthetic diamonds? Detect

Multiple stones at one time? Yes

Training? Yes, review of user manual and operation video is sufficient

 

How Does it Operate?

The user manually places the loose or mounted stones inside the specially designed test chamber of the instrument for different shapes of jewellery. To start the testing, the user closes the test chamber and press the start button.

 

J-Certain automatically makes a measurement and displays one of the following results:

 

  1. ‘Diamond’
  2. ‘Synthetic diamond’
  3. ‘Check with fluorescent light’

 

ASSURE Test

J-Certain was tested in accordance with the Diamond Verification Instrument Standard with the test protocol for instruments that separate diamonds from synthetic diamonds (Operation Category 1).

 

The tests took place at the independent laboratory UL in Canton, Massachusetts, United States.The tests were performed by a novice operator. J-Certain was tested with the ASSURE Core Sample and ASSURE Smalls Sample.

 

The UL test summary report can be found here.

 


ASSURE Core Sample

The ASSURE Core Sample consists of 1,000 loose diamonds and 200 loose synthetic diamonds. The stones are 0.02 ct to 0.20 ct in D-J colour. The below results are from the test with the ASSURE Core Sample.

 

Diamond False Positive Rate Ratio of synthetic diamonds incorrectly classified as ‘diamond’ to the total number of synthetic diamonds 19.6%
Diamond Referral Rate Ratio of diamonds being referred for further testing to the total number of diamonds 0.2%
Diamond Accuracy Ratio of diamonds correctly classified as 'diamond' to the total number of diamonds 99.7%
Speed Stones tested per hour 792
ASSURE Smalls Sample

The ASSURE Smalls Sample consists of 1,000 loose diamonds and 200 loose synthetic diamonds. The stones are 0.005 ct to 0.02 ct in D-J colour. The below results are from the test with the ASSURE Smalls Sample.

 

 

Diamond False Positive Rate Ratio of synthetic diamonds incorrectly classified as ‘diamond’ to the total number of synthetic diamonds 5.8%
Diamond Referral Rate Ratio of diamonds being referred for further testing to the total number of diamonds 0.3%
Diamond Accuracy Ratio of diamonds correctly classified as 'diamond' to the total number of diamonds 99.3%
Speed Stones tested per hour 792
Where Do I purchase the Instrument?

Website: http://www.massivetechlab.com/

Email: info@massivetechlab.com

Phone: +91 9769972575

Safety Testing

The most important requirement when selecting a Diamond Verification Instrument is that the instrument meets the safety regulations of your local jurisdiction. Before purchasing an instrument, request that the manufacturer verifies that their instrument complies with all regulatory requirements.

 

Click here to download the safety testing credential for J-Certain submitted by Massive Tech Lab. Please note that the safety testing credentials have not been validated through the ASSURE Program.