{ "item_title" : "Refractometers Made Easy", "item_author" : [" Antoinette Matlins "], "item_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.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/0/99/041/523/0990415236_b.jpg", "price_data" : { "retail_price" : "4.99", "online_price" : "4.99", "our_price" : "4.99", "club_price" : "4.99", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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