Assure Directory


Instrument Description

ALROSA DIAMOND INSPECTOR is a portable diamond verification instrument for loose and mounted diamonds. ALROSA DIAMOND INSPECTOR is designed to separate diamonds from synthetic diamonds and diamond simulants. ALROSA DIAMOND INSPECTOR is manually operated but gives an automatic test result. ALROSA DIAMOND INSPECTOR 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: 64815

Instrument Specs

Size: 15 cm (W) x 25 cm (D) x 10 cm (H)

Weight: 1.8 kg/3.1 kg

Price: 5,799 USD (August 2019)

View Instrument Details

What Stones Can Be Tested?

Weight of stones: 0.03 ct-10 ct

Size of stones: 2 mm-14.4 mm

Colour of stones: D-J

Shape of stones: All

Diamond simulants: Yes

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


Capabilities according to ALROSA

Instrument Functionality

Automatically feed the stones? No

Automatically interpret the results? Yes

Automatically dispense the stones? No

Detect or refer synthetic diamonds? Refer

Detect or refer diamond simulants? Detect

Multiple stones at one time? No

Training? No

How Does it Operate?

The user manually places the loose or mounted stones inside the test chamber of the instrument. To start the testing, the user closes the test chamber and press the scan button.


ALROSA DIAMOND INSPECTOR automatically makes a measurement and displays one of the following results:


  1. ‘Natural
  2. ‘TYPE IIa (IaB) Refer to Lab.’
  3. ‘Treated’
  4. ‘Need investigation’
  5. ‘Simulant’
  6. ‘Check stone’

The ‘TYPE IIa (IaB), Refer to lab’ and ‘Need investigation’ results could contain potential synthetic diamonds and diamonds. These referrals shall be tested further for full verification. ALROSA recommends further testing of referred stones by a gemmological laboratory.


ALROSA DIAMOND INSPECTOR was tested in accordance with the Diamond Verification Instrument Standard with the test protocol for instruments that separate diamonds, synthetic diamonds and diamond simulants (Operation Category 3).


The tests took place at the independent laboratory UL in Canton, Massachusetts, United States. ALROSA Diamond Inspector does not require manual interpretation and the instrument was tested with a novice operator. The detailed test results can be found in the summary report issued by UL. ALROSA Diamond Inspector was tested with the ASSURE Core Sample.


The UL test report including more detailed test results can be found here.


ASSURE Core Sample

The ASSURE Core Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants. 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 0%
Diamond Referral Rate Ratio of diamonds being referred for further testing to the total number of diamonds 3.6%
Diamond Accuracy Rate Ratio of diamonds correctly classified as ‘diamond’ to the total number of diamonds 96.4%
Speed Stones tested per hour 24
Where Do I purchase the Instrument?

Website: https://www.alrosa-inspector.com

Email: info@alrosa-inspector.com

Phone: +7 495 108 52 58

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 ALROSA Diamond Inspector submitted by ALROSA. Please note that the safety testing credentials have not been validated through the ASSURE Program.