{"product_id":"9780943763989","title":"Refractometers Made Easy: The \"RIGHT-WAY\" Guide to Using Gem Identification Tools","description":"Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes. The approach is direct and practical, and its style is easy to understand. With this highly accessible guide booklet, anyone can begin to master gem identification using the refractometer.","brand":"Turner Publishing Company","offers":[{"title":"Default Title","offer_id":47118577959152,"sku":"9780943763989","price":4.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9780943763989_p0.jpg?v=1763869785","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780943763989","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}