×

Assure Directory

DiamondSure by De Beers Group Industry Services

Instrument Description

DiamondSure is a portable desktop diamond verification instrument for loose and mounted stones. DiamondSure is designed to separate diamonds from synthetic diamonds. DiamondSure is manually operated but gives an automatic test result. DiamondSure is suitable for dealers, diamond and jewellery manufacturers, retailers, buyers and gemmological laboratories. ASSURE ID: 463851.

Instrument Specs

Size: 17 cm (W) x 26 cm (D) x 10 cm (H)

Weight: 3.5 kg

Price: 18,200 USD (February 2019)

View Instrument Details

What Stones Can Be Tested?

Weight of stones: 0.05 ct-10 ct

Colour of stones: D-J (failsafe across all colours although natural fancy colours will give a higher referral rate)

Shape of stones: All

Diamond simulants: Yes (this claim has not been tested by the ASSURE Program)

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

 

Capabilities according to De Beers Group Industry Services

Instrument Functionality

Automatically feed the stones? No

Automatically interpret the results? Yes

Automatically dispense the stones? No

Detect or refer synthetic diamonds? Refer

Multiple stones at one time? No

Training? No

How Does it Operate?

The instrument tests individual stones and automatically displays a test result. The user manually places the stone table down on the fibre and the test button is pressed. The DiamondSure automatically makes a measurement and displays a result.

 

The DiamondSure displays one of the following results:

 

  1. ‘Pass’
  2. ‘Pass (check with thermal pen)’
  3. ‘Refer for further tests’
  4. ‘Refer for further tests (type Ib component)’
  5. ‘Refer for further tests (type II)’
  6. ‘Refer for further tests (possible type IaB)’
  7. ‘Refer (test for moissanite)’

 

The ‘Refer’ results could contain potential synthetic diamonds, diamond simulants and diamonds. These referrals shall be tested further for full verification. De Beers Group Industry Services recommends further testing with the DiamondView or by a gemmological laboratory.

ASSURE Test

DiamondSure 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).

 

Please note that the DiamondSure is marketed as being able to process diamond simulants when used together with a thermal pen. This claim has not been tested by the ASSURE Program, the instrument has only been tested with a sample consisting of diamonds and synthetic diamonds.

 

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

 

The summary test report issued by UL 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 (and diamond simulants) incorrectly classified as 'diamond' to the total number of synthetic diamonds (and diamond simulants) 0%
Diamond Referral Rate Ratio of diamonds being referred for further testing to the total number of diamonds 4.7%
Diamond Accuracy Ratio of diamonds correctly classified as diamonds to the total number of diamonds 95.3%
Synthetic Diamond Referral Rate Ratio of synthetic diamonds being referred for further testing to the total number of synthetic diamonds 100%
Speed Stones tested per hour 193
Where Do I purchase the Instrument?

Website: https://www.debeersgroupservices.com/instruments

Email: contact@debeersgroupservices.com

Phone: +44 207 858 7887

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 DiamondSure submitted by De Beers Group Industry Services. Please note that the safety testing credentials have not been validated through the ASSURE Program.