26 2 4 5 3 1 6 7 8 9 1 Presidium OTi diamond tester Compact, for the reliable identification of colorless diamonds and for distinguishing them from CVD/HPHT-lab-grown diamonds, moissanites and common imitations such as glass, sapphire and zirconia (CZ). For set and unset gemstones from a stone ø 1.6 mm. Technical data: 10.5 x 7.0 x 2.5 cm; 3 x AAA (LR03); 60 g. Delivery includes: OTi diamond tester complete with stone support plate; calibration disc and storage bag. Batteries not included. each I-G50078 2-5 Presidium Adamas diamond and moissanite tester For the differentiation of diamonds, moissanites, imitations and metals. With two interchangeable magnetic tip heads: one with a standard test probe for mounted and unmounted gemstones from a stone ø of 1.7 mm or 0.02 ct and one with a micro test probe for gemstones from a stone ø of 1.3 mm or 0.01 ct. 2 Technical data: 18.9 x 3.6 x 2.8 cm; 3 x AAA (LR03); 85 g. Delivery includes: Adamas diamond and moissanite tester complete with tip heads, one with a standard and one with a micro test probe, USB cable; storage bag, metal gem plate, with calibration disc and OMI software. Batteries not included. each I-G50286 With integrated eight-part gemstone holder and a table of 55 common gemstones and their refractive indices via the PRIM II software. Battery-operated. Technical data: 14.0 x 8.0 x 3.3 cm; 9 V; working temperature 18-27 °C; measuring range 1000 to ~3000; 140 g. Delivery includes: Refractive Index Meter II complete with download access for PRIM II software and storage bag. Battery not included. each I-G50119 USB mains cable each I-G50285 7 Stone Tweezers Medium fine tip, chrome-plated. length 160 mm each I-G10962 8+9 Krüss Stone Tweezers With groove, matt. each I-G10961 8 without shift lock I-G10963 9 with shift lock Tip head, with test tip each I-G50287 3 standard I-G50288 4 micro 5 Stone support plate, made of metal, with calibration disc each I-G50289 USB mains cable each I-G50285 6 Presidium Refractive Index Meter II gemstone testing device Digital bench-top testing device for quick differentiation of stones based on their refractive index (RI). Diamonds, moissanites and other coloured gemstones can be distinguished by measuring the amount of light reflected by the polished stone. Advantages: • Fast, cost-efficient and precise differentiation between natural and synthetic diamonds; • Optical and thermal testing with a single test tip for immediate results; • Simple operation via touchscreen with battery level indicator; • Automatic switch-off of the UV light source when not in use; • Replaceable test tip to minimise device downtime. Advantages: • Dynamic display with bright micro LED display for clear and concise results; • Up to twelve hours of continuous operation with AAA alkaline batteries; • Automatic switch-off; • USB port enables connection to PC for additional functions; • Slim, ergonomic plastic handle. Advantages: • C overed bowl with darkened interior for the accurate measurement of light reflectance; • Immediate display of the RI value on the digital index LED display panel; • Wide measuring range of the refractive index (RI); • No contamination due to the elimination of RI fluid; • USB port for alternative power supply and data transfer for PRIM II software; • Automatic switch-off.
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