Professional Diamond Selector II - Fast and safe diamond verification - Identifies genuine diamonds versus fakes quickly and reliably. - Designed for precise, safe testing with an LCD display and LED indicators. - Uses large and small testing switches to accommodate different stones. - Audible beeps help differentiate readings for easy interpretation. - Bare hands operation for accuracy - All tests must be performed with bare hands. - Wearing gloves can disable the metal alert because a normal moisture level in the hands is required. - Testing requires two hands: one to hold the diamond, the other to operate the tester. - The hand holding the tester must touch the electrical conductive panel on the back of the unit; testing with one hand can yield incorrect results. - Startup beeps and initialization guidance - Ensure proper installation and adequate battery power in the test pen. - Clean the test pen probe to maintain testing efficacy. - A beeping sound on startup indicates a need for initialization settings. - Refer to the table on the rear of the unit for initialization settings based on the diamond’s temperature and size. - Use the knob to adjust the number of illuminated lights; the default setting is 4 lights illuminated at room temperature. - High-frequency sound when testing metal - A high-frequency tone during metal testing reflects the device’s thermal conductivity based testing principle. - Metals can have thermal conductivity similar to diamonds, which can produce this tone during testing. - Simple to use - User friendly and does not require professionals. - Turn on the Diamond Tester Pen, lightly press the tip onto the gemstone, and observe readings. - If the stone is fake, crystal, or cubic zirconia, the tester will not beep. - Important notes for best results - Battery temperature below 10 degrees Celsius can reduce operating time. - Do not wear gloves during testing; do not test metal. - For best results, measure in no wind conditions. - Operating temperature: 10 to 35 degrees Celsius; humidity below 80%. - When testing a diamond, keep your right index finger touching the metal panel on the back of the tester. - Power off the device after testing to conserve power. - Specifications and key attributes - Brand and model: Professional Diamond Selector II - Function: rapid identification of genuine diamonds versus fakes; audio and visual indications assist decision making - Compatibility and usage: designed for use with diamonds of various sizes; requires bare-handed operation and contact with the back panel - Size and form: hand-held Diamond Tester Pen for convenient, on-the-spot testing - Material and build: includes LCD display, LED indicators, and durable testing probes - Performance notes: startup beeps signal initialization; results differentiate between genuine diamonds and common simulants such as crystals or cubic zirconia through beeps and indicators Use scenarios - Jewelry store inspection - Quickly verify newly received diamonds before display or sale, ensuring customers receive authentic stones. - Appraisal and inventory control - Efficiently screen stones during routine appraisals or stock checks to confirm authenticity across large inventories. - Workshop and bench testing - Use in a workshop or lab setting to assess stones during setting or grading processes, benefiting from real-time, hands-on testing with immediate feedback.