{"product_id":"presidium-pdt-duo-tester-diamond-gemstone-identifier","title":"Presidium PDT Duo Tester-Identify Diamonds \u0026 Colored Stones","description":"\u003cp\u003eTest a stone two ways with one press of the button, so a diamond reading is confirmed before the piece leaves the bench. The \u003cstrong\u003ePresidium PDT Duo Tester\u003c\/strong\u003e combines two distinct testing methods into a single professional instrument, giving jewelers and gemologists the tools needed to accurately identify diamonds, diamond simulants including synthetic moissanite, and popular colored gemstones. Unlike a standard thermal tester alone, this unit simultaneously performs both thermal conductivity testing and digital reflectivity measurement through a single probe.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual testing technology:\u003c\/strong\u003e thermal conductivity testing and digital reflectivity measurement are performed simultaneously through the same testing probe with a single press of the test button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital reflectivity meter:\u003c\/strong\u003e provides a numeric readout that cross-references with the included Simulant Reflectivity Chart to identify the stone based on its refractive index\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalog needle thermal display:\u003c\/strong\u003e easy-to-read dial calibrated to indicate differences in thermal conductivity across popular gemstones and simulants; diamond readings fall in a clearly marked green zone, colored gemstones in labeled red zones\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoissanite detection:\u003c\/strong\u003e the reflectivity meter confirms or rules out synthetic moissanite, which shares the same thermal characteristics as diamond and cannot be distinguished by thermal testing alone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks on mounted and loose stones:\u003c\/strong\u003e the thermal probe tests both mounted and loose gemstones, and even coated stones can be accurately tested\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal warning detector:\u003c\/strong\u003e the thermal probe pen emits an audible buzz if the gem mounting is accidentally contacted during testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in calibration standards:\u003c\/strong\u003e integrated diamond and simulant test discs for thermal tester calibration, plus a built-in diamond substitute set for reflectivity meter calibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample stone tray:\u003c\/strong\u003e slide-out tray with plastic cover holds seven calibration stones (YAG, Cubic Zirconia, Zircon, Strontium Titanate, GGG, Synthetic Spinel and Synthetic Sapphire), each approximately 5.0 mm in diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible power options:\u003c\/strong\u003e operates on 5 AA alkaline batteries or the included 120V AC adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-year factory warranty:\u003c\/strong\u003e each unit is tested for functionality before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eWhat you get:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePresidium PDT Duo Tester instrument\u003c\/li\u003e\n\u003cli\u003eThermal testing probe\u003c\/li\u003e\n\u003cli\u003eSimulant Reflectivity Chart\u003c\/li\u003e\n\u003cli\u003eBuilt-in diamond and simulant test discs\u003c\/li\u003e\n\u003cli\u003eBuilt-in diamond substitute set (7 calibration stones in slide-out tray with plastic cover)\u003c\/li\u003e\n\u003cli\u003e120V AC adapter\u003c\/li\u003e\n\u003cli\u003eAll stones identified as diamond by the thermal tester should also be tested with the reflectivity meter to rule out synthetic moissanite, as moissanite shares the same thermal conductivity as diamond.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Presidium","offers":[{"title":"Default Title","offer_id":43581433217238,"sku":"156.756","price":423.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/presidium-pdt-duo-tester-identify-diamonds-and-colored-stones-otto-frei-1.jpg?v=1719957558","url":"https:\/\/www.ottofrei.com\/it\/products\/presidium-pdt-duo-tester-diamond-gemstone-identifier","provider":"Otto Frei","version":"1.0","type":"link"}