Presidium ARi Synthetic Diamond Tester

Secure your diamond inventory with the advanced Presidium ARi Synthetic Diamond Tester. This handheld verification instrument utilizes proprietary UV light absorbance technology to instantly distinguish natural colorless diamonds from CVD/HPHT lab-grown synthetics and all types of moissanite. Suitable for both loose and mounted stones—even in closed-back settings—it delivers clear, accurate results in just 3 seconds on its vibrant color LCD touch screen.

Key Features & Benefits

• Advanced UV Absorbance Technology: Safely and accurately measures UV light absorbance to separate natural diamonds (Colors D to J) from CVD/HPHT lab-grown stones and new "low conductivity" moissanites.

• Replaceable Optical Probe: Eliminate costly equipment downtime. The innovative design allows you to easily replace worn or damaged optical probe tips yourself on the spot.

• User-Safe & Smart Design: The retractable UV optical probe only activates upon direct contact with the stone, while a built-in alert buzzer warns of contact loss during the 3-second testing window.

• Ambidextrous Touch Screen: Features a 6-language graphical user interface (GUI) on a color LCD screen, thoughtfully ergonomically designed to accommodate both left- and right-handed users.

Perfect For Every Scenario

• Retail Jewelry Showrooms: Instantly verify mounted stones right in front of customers, including complex pieces with closed-back settings where traditional light testing is difficult.

• Diamond Wholesalers & Traders: Process large volumes of loose diamonds rapidly, accurately testing stones as small as 0.02ct for consecutive testing.

• Estate Buyers & Appraisers: Confidently identify undisclosed lab-grown diamonds and advanced moissanite simulants quickly in the field.