YEHUDA Sherlock Holmes 2.0



According to Underwriters Laboratories: Sherlock Holmes 2.0 Detected 100% of all Lab Grown Diamonds

The ASSURE Instrument Testing Program is an ongoing initiative of the Natural Diamond Council (formerly Diamond Producers Association). They used an independent 3rd party, Underwriters Laboratories (UL), to Impartially test and verify the effectiveness of all the CVD/HPHT detection devices that were submitted for a comprehensive review.


Click on this link to read the full PROJECT ASSURE report performed by UL Laboratories.


There are 3 types of lab-grown diamond detectors:

Type 1: Detectors that can check only one stone at a time (mounted or loose).

Type 2: Detectors that sort small (under 0.20 ct) round diamonds into 2 groups–natural and synthetic (primarily used gem labs).

Type 3: Detectors that can check single AND multiple stones (mounted or loose). AND multiple pieces of mounted jewelry.


UL results shown in the chart are the best test results for each device as it appears in the ASSURE DIRECTORY for a novice or expert.


All test results can be found online in the ASSURE Directory.









The ultimate Sherlock Holmes 2.0 Detector does it all! The Sherlock Holmes is designed to separate all sizes of loose and mounted natural diamonds from synthetic diamonds in the D-K color range. It also separates loose CZ, moissanite, synthetic diamond coated CZ, and moissanite. PATENT PENDING.

  1. Includes 1 small HPHT grown sample stone.
  2. There is no need to touch each stone with a probe.
  3. Identifies both mounted and unmounted diamonds in bulk.
  4. Instantly detects CVD lab grown diamonds.
  5. Instantly detects HPHT lab grown diamonds.
  6. It even correctly identifies natural diamonds that have been color-enhanced through the HPHT process as natural diamonds.

New SHERLOCK HOLMES 2.0 Features:

  1. Detection of CZ and Moissanite in loose stones.
  2. The 2.0 is 1.25 inches taller.
  3. You can now rotate the ring holder from the outside without the need to open the drawer.
  4. You can manually set the focus so that you no longer need to cover the bottom lamp.
  5. The phone (provided) is connected via cable, so no more disconnection frustrations.
  6. The new phone gives you a slightly larger screen.
  7. 2.0 can export your results via email or Bluetooth and store them to G-drive!


Most of the problems may arise from the phone itself.

  1. With any problem–First make sure that the electric cord is fully inserted at the back of the detector and the green light at the back is ON.
  2. The screen goes black–press lightly on the ON/OFF button of the phone and swipe the screen.
  3. The time appears on the screen with “how is the weather”–swipe the screen from bottom to top.
  4. The phone freezes–press a long press the ON/OFF button and restart the phone.
  5. The phone freezes and pressing the ON/OFF button does not help–In this situation, there is no choice but to drain the battery. Disconnect the detector and wait until the battery is drained. It may take a few hours until you can start the phone again. After the battery is drained reconnect the electricity and make sure that the green light at the back of the detector is ON. This will charge the phone and a few minutes later you can press the ON button on the side of the phone to start it.
  6. The detector keeps showing the “close the drawer” message, even though the drawer is closed–Make sure the green light at the back is on. Press the HOME button. The detector will reconnect to the Bluetooth and you can continue to work.

Weight: 5 pounds

Dimensions: 13″x7″x8″

Download the Yehuda Sherlock Holmes manual here!