The OTi by Presidium revolutionizes diamond authentication with its dual Optical/Thermal technology in a single probe. It enables quick, cost-effective, and precise distinction between natural and synthetic diamonds, ensuring trust and security in the diamond and jewelry industry.


Benefits at a Glance:

• Reliably identifies colorless diamonds (colours D to J) and distinguishes them from CVD/HPHT lab-grown diamonds, moissanites, and common simulants such as glass, sapphire, and cubic zirconia (CZ).
  
• Dual Optical/Thermal technology in a single probe tip for instant results.
  
• Suitable for testing loose and mounted stones in all jewelry settings.
  
• Compact and portable design for easy on-the-spot use.
  
• User-friendly with a resistive touchscreen and multilingual interface.

Product Details:

• Precise Authentication: The OTi uses dual Optical/Thermal technology to accurately distinguish between natural and synthetic diamonds, as well as moissanites and other common simulants.
  
• Safety: Automatic shutdown of the UV light source when not in use.
  
• User-Friendly: Resistive touchscreen, automatic shutdown, and battery level indicator for easy handling.
  
• Portable: Compact and lightweight design for convenient use on the go.
  
• Versatile: Suitable for testing loose and mounted diamonds in all jewelry settings.
  
• Advanced Features: Multilingual interface available in 6 languages, replaceable probe technology to minimize downtime.

Most important product changes after the product presentation at the 2024 trade fairs:

• Faster Heating Time: The tip now heats up in just 1-2 seconds, depending on the surrounding environment. For repeated testing on the same stone, especially mounted diamonds, we still recommend waiting 5 seconds until the screen changes to "Depress tip to start test." This prevents inaccurate results as the stone needs sufficient time to cool down to its original thermal conductivity.
  
• Safer Probe Tip: The temperature of the tip has been reduced to minimize the risk of burns. The tip is still hot, but not as hot as it was originally.

Detection threshold by gemstone shape:
The minimum detectable carat weight may vary depending on the cut of the gemstone:

• Round Brilliant Cut: from approx. 0.06 ct
  
• Princess Cut: from approx. 0.07 ct
  
• Marquise Cut: from approx. 0.10 ct
  
• Baguette Cut: from approx. 0.17 ct

**Cut quality:** Suitable for all proportionally cut diamonds.


Technical Specifications:
Power supply: 3 x AAA lithium batteries or power bank (not included) via USB cable
Battery life: Up to 1.5 hours of continuous use.
Operating temperature: 18°C - 27°C (65°F - 80°F).
Storage temperature: 10°C - 51°C (50°F - 124°F).

Optimal Power Supply for the OTi Testing Device:
For the best testing results, we recommend using a power bank or rechargeable lithium batteries. These options ensure consistently high UV intensity and allow for longer testing periods – ideal for professional use. This way, the device maintains stable performance, delivering reliable results with every application.