Diamond Jet 100 is a pocket size high technology professional instrument where all of its operations controlled by a microprocessor with latest digital technology and with superior surface mount technology this unit feature fast start-up and instant recovery for a test. Diamond Jet 100 separates real Diamonds from traditional Simulants such as Cubic Zirconium, Quartz, Yag, White Sapphire, etc. If the operator of this instrument does not carefully follow the instructions listed below the end result might be incorrect operation and misleading test results.

Diamond Jet 100 will NOT detect man made ´Moissanite´ stone.


1. Remove protective snap-on cap from the probe tip to expose the sensor tip. Slide ON/OFF switch to the “ON” position. The unit responds with a brief beep and the red READY light start blinking indicating that the device is getting ready for operation. When the “READY” light stops blinking and stays on the device is ready to be used. If there is no sound following “Turn On” and “BATT” light blinks non-stop, it indicates low battery. The instrument must be turned off and the batteries replaced. Operating Diamond Jet 100 with low batteries could result in false readings.

2. Testing for Diamond, traditional Simulants; gently press and keep the tip on the stone until the audible ´CLICK´ is heard. When the test is complete the signal automatically goes to appropriate light accompanied by a distinctive BEEP, and no further testing is required.

  • If the stone is a Diamond the GREEN ´Diamond´ light will illuminate
  • If the stone is a Simulant the YELLOW ´Simulants´ light will illuminate
  • If there is Metal ´Metal´ light will illuminate
  • When using the testing the stone be sure you place your thumb on the metal plate in the front side of the unit to prevent false indication. The sensor tip must e in contact with the stone only (NOT METAL) for accurate test.

3. TURN OFF – Slide ON/OFF switch to “OFF” position, and store until next use. If the instrument left turned On for more that four (4) minutes will automatically shut itself off and audible sound will sound every 10seconds indicating that the ON/OFF switch needs to be returned to the “OFF” position

4. Operating temperature – This tester can operate in HOT and relatively COLD environment from 60ºF (15ºC) too more than 100ºF (40ºC).

5. Cleaning – The probe tip on the Diamond Jet 100 will need to be cleaned each day the instrument is being used. To clean, depress and rub the probe tip on a piece of white bond paper or sand paper. If necessary, scrape the tip with a fine needle file.

6. Loose Stones – The instrument kit contains a small metal plate for testing loose stones. Place the stone table face up on the metal plate and test. You will not obtain the reading with the plate unless you hold the plate with your other bare hand.

7. Power Source – The Diamond Jet 100 equipped with brand name “AAA” alkaline batteries. In addition to “AAA” alkaline batteries the unit will operate with optional AC/DC converter available either from our authorized distributor or directly from TRI Electronics, Inc.

Note – In case when the tester indicates incorrect results, the imbedded microprocessor allows the instrument user to recalibrate the machine by

turning unit “OFF” and then after ten (10) seconds turning it back on.


If there is any questions or problems regarding Diamond Jet 100 operation, please contact our service department by phone 1-282-571-4881 or Fax 1-282-571-5404. Most of the problems can be easily and efficiently resolved over the phone. At your preference you can contact us via e-mail service@trielectronics.com or write: Tri Electronics, Inc. 9570 Ridge haven Court, Ste A, San Diego, CA 92123


Tri Electronics, Inc. as the manufacturer of the Diamond Jet 100 tester, believes the instrument will provide a fast and reliable test which will determine the authenticity of diamonds when used in strict accordance with the provided instructions. Tri Electronics, Inc. warrants that each instrument is free from defects in material and workmanship for a period of two (2) years from the date of purchase. This warranty applies to a Diamond Jet 100 tester that is not abused or improperly used and only if the device is used in accordance with the Owners Manual furnished by Tri Electronics, Inc. this warranty does not cover: any product where an attempt to disassemble the same is established; modifications; alterations; un-authorized repair or service of the product or damages or defects resulting from accident or any events beyond the control of Tri Electronics, Inc. The warranty is offered to the original purchaser only and proof of purchase is required for the warranty to be effective. Batteries are excluded from the warranty.


Upon purchase of this instrument the purchaser, their assigns or any other user of this instrument understands and accepts the fact that Tri Electronics has no control over the use of conditions of the tester in operation nor does Tri Electronics have full or complete access to or current or complete knowledge of the unique synthetic stones, grown stones, or new chemical alterations of man made gem stones. It is, further, expected that the purchaser, their assigns or any other user of this instrument is knowledgeable of gem stones and understands their obligation to conduct traditional or special alternate test on suspicious gemstones to protect their interests. Based on these conditions, which are clearly understood to be beyond the control of Tri Electronics, the purchaser, their assigns or any other user of this instrument agrees upon purchase or use of the instrument to waive any right to legal actions against Tri Electronics resulting from erroneous tests in excess of the values of the tester.



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