Presidium OTi
A&A Jewelry Supply
Offering dual optical/thermal testing in a single probe, the Presidium OTi is a handheld device for detecting natural diamonds from synthetics. Compact and portable for on-the-spot testing, the unit can be used to identify colorless diamonds against CVD/HPHT lab-grown colorless diamonds, all types of moissanite, and all common diamond simulants, including glass, sapphire, and cubic zirconia. Suitable for use on D to J colored loose and mounted diamonds in all jewelry settings, the OTi features a resistive touchscreen, auto shutdown, low-battery indicator, and a user interface available in six languages. Operating on 3 AAA batteries, the tester weighs 60 grams without the batteries and measures 105 mm long by 70 mm wide by 24.8 mm high.