{"product_id":"presidium-refractive-index-metre-ii-for-diamonds-gemstones-prim-ii","title":"Presidium Refractive Index Metre II for Diamonds \u0026 Gemstones PRIM II","description":"\u003cp\u003e\u003cstrong\u003ePresidium Refractive Index Metre II for Diamonds \u0026amp; Gemstones PRIM II\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003eBy measuring the quantity of light reflected through the stone, the Presidium Refractive Index Meter II (PRIM II) is able to separate diamonds, moissanites and other colored gemstones via the Refractive Index (R.I) of these polished gemstones.\u003c\/p\u003e\n\u003cp\u003eUnlike a traditional refractometer that has a limited range of R.I measurements and thus cannot be easily used to measure R.I of certain gemstones, the PRIM II is able to measure a wider range of R.I value from 1.000 to ~3.000, therefore covering the commonly known gemstones in the market and can also measure RI of diamonds, moissanites and other diamond simulants such as high zircon, strontium titanite, etc.\u003c\/p\u003e\n\u003cp\u003eIn addition, a fast and clean test can be easily done with the PRIM II, without the inconvenience and messiness of R.I liquid used in the traditional refractometer.\u003c\/p\u003e\n\u003cp\u003eThe PRIM II also comes with a downloadable software that provides a database of more than 50 gemstones with their various properties and possible origins, and a program that enables the user to enter known properties of the gemstone such as color, S.G. value, hardness, etc to ascertain what possible gemstone it is from the database information.\u003c\/p\u003e\n\u003cp\u003eFeatures\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePinhole-sized light reflectivity measure on wide oval platform\u003c\/li\u003e\n\u003cli\u003eCover cup with blackout interior to ensure light reflectivity measure is accurate\u003c\/li\u003e\n\u003cli\u003eInstantly displays direct R.I reading on digital index LED display panel\u003c\/li\u003e\n\u003cli\u003eIn-built Refractive Chart for referencing diamonds and simulants above R.I reading of 1.8\u003c\/li\u003e\n\u003cli\u003eIn-built 8-piece gemstone holder\u003c\/li\u003e\n\u003cli\u003ePocket-sized Refractive Index Chart pull-out with R.I readings for 55 stones\u003c\/li\u003e\n\u003cli\u003ePRIM II complementary software to help users find out the possible coloured gemstone using data on various gemstone properties\u003c\/li\u003e\n\u003cli\u003eGemstone Dictionary in software with 57 gemstones’ properties (R.I, Color, Hardness, S.G. Value), country of origin and related information\u003c\/li\u003e\n\u003cli\u003eUSB port for alternative power source and connectivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBenefits\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEstimates diamonds, moissanites and gemstones’ R.I instantly, thereby allowing identification of possible stones\u003c\/li\u003e\n\u003cli\u003eAble to test wide range of R.I values from 1.000 – 3.000, more than traditional refractometer\u003c\/li\u003e\n\u003cli\u003eNo need for messy R.I liquids\u003c\/li\u003e\n\u003cli\u003eTests on transparent gemstones, with flat polished surfaces\u003c\/li\u003e\n\u003cli\u003eContinual elimination of possible gemstones via software program through input of known values such as R.I, color, hardness and S.G.\u003c\/li\u003e\n\u003cli\u003eIdeal for separation of gemstones\u003c\/li\u003e\n\u003cli\u003eClear and visible display for ease of reading results\u003c\/li\u003e\n\u003cli\u003eNo waiting time between tests\u003c\/li\u003e\n\u003cli\u003eSimple and easy to use\u003c\/li\u003e\n\u003cli\u003eLight and compact tester\u003c\/li\u003e\n\u003cli\u003eRuns on batteries or with recommended Presidium AC adaptor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePower \u0026amp; Battery\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 9V alkaline battery (approximately 3 hours of continuous use)\u003c\/li\u003e\n\u003cli\u003eUSB port to be used with appropriate Presidium Power Adaptor (not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended Operating Conditions\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptimal Operating Temperature: 18°C – 27°C (65°F – 80°F)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: 10°C – 51°C (50°F – 124°F)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDimensions\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 140mm (5.50 inches)\u003c\/li\u003e\n\u003cli\u003eWidth: 80mm (3.15 inches)\u003c\/li\u003e\n\u003cli\u003eHeight:33mm (1.30 inches)\u003c\/li\u003e\n\u003cli\u003eWeight (without batteries): 140grams (4.94 oz)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Presidium","offers":[{"title":"Default Title","offer_id":59398075449678,"sku":"PRESIDIUM-PRIMII","price":324.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/2940\/1166\/files\/1719013747-60975900.jpg?v=1775927136","url":"https:\/\/maddisonsofdurham.co.uk\/products\/presidium-refractive-index-metre-ii-for-diamonds-gemstones-prim-ii","provider":"Maddisons of Durham","version":"1.0","type":"link"}