{"product_id":"ilgr-757","title":"ILGR-757 1.30 ~ 1.81 RI Range Gemological Refractometer + Index oil Flashlight Polarizing Lens","description":"\u003cdiv class=\"ui-box-body\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eRefractive  Index is one of the most important optical parameters  used to identify and authenticate polished precious  and semi-precious gemstones. This Gemological refractometer  is a low cost, lightweight measuring instrument used  by jewelers and traders of gemstones \u003c\/span\u003e\u003cspan\u003e  to measure polished stones over a refractive \u003cspan\u003eindex  range of 1.30 to 1.81 RI\u003c\/span\u003e. The instrument can also  be used to identify whether a particular stone is Isotropic  or Anistropic (uniaxial or biaxial).\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003eGemological  (Gemstone) Refractometer is your primary and most powerful  tool in gemstone identification. As with a typical critical  angle refractometer, it will measure the Refractive  Index of faceted stones.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures: \u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCan  identify singly \u0026amp; doubly gemstones quickly  and accurately\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUniquely  designed, low battery consumption and portable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApproved  by strict quality and safety standards for long  and trouble-free life\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGuaranteed  high quality and accurate testing results\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrand  new and unused\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eMeasuring  Range: 1.30 – 1.81 RI\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eMinimum  Graduation Value: 0.01 RI\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003eDimension:  30 x 70 x 130mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eWeight:  400g\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eSet Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1  x Gem Refractometer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Polarizing Filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Monochromatic Light Filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Mini  Flashlight\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x 1.5V AAA Battery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Storage  Box\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Refractometer Index Reference List (For 77 common gemstones, i.e. Calcite, Jadeite,  Quartz etc.)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 x Quick  Start Guide\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptional Item\u003c\/strong\u003e\u003cspan\u003e\u003cspan\u003e\u003cem\u003e (not included in set)\u003c\/em\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan\u003e\u003cem\u003e    Please click here to buy this optional item   \u003ca href=\"https:\/\/instrulife.com\/products\/ilre-01ri\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eSmall  Vial of 1.800 Refractive Index Oil\u003c\/strong\u003e\u003c\/a\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cem\u003e \u003c\/em\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan\u003e\u003cem\u003eor you may contact us at info@instrulife.com if you want an optional items to be included in your order\u003c\/em\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"A04","offers":[{"title":"Default Title","offer_id":43067182252075,"sku":"ILGR-757","price":110.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5850\/1675\/files\/gain-express-cl-181-cl-181-130-181-ri-range-gemological-refractometer-index-oil-flashlight-polarizing-lens-136056.jpg?v=1770634401","url":"https:\/\/instrulife.com\/products\/ilgr-757","provider":"Instrulife","version":"1.0","type":"link"}