{"product_id":"secrets-of-the-gem-trade-the-connoisseur-s-guide-to-precious-gemstones","title":"Secrets of the Gem Trade: The Connoisseur s Guide to Precious Gemstones","description":"\u003cp\u003eAs the subtitle suggests, Secrets of the Gem Trade is the consumer s guide to precious gemstones. Divided into two parts: In plain nontechnical language, Part I redefines preciousness and gently guides the reader toward a real understanding of those criteria that make a gemstone. Part II contains a series of individual essays that apply the criteria of connoisseurship to 35 of today s most important gemstones. The book covers precious stones old and new including diamond, pearl, tourmaline, sapphire, chalcedony, spinel, ruby, and garnet\u003c\/p\u003e","brand":"Brand: Brunswick House Press","offers":[{"title":"Default Title","offer_id":47334543720693,"sku":"SONG0972822399","price":64.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/5804\/8501\/files\/81X4EEHUCdL.jpg?v=1763968769","url":"https:\/\/ergodebooks.com\/products\/secrets-of-the-gem-trade-the-connoisseur-s-guide-to-precious-gemstones","provider":"Ergodebooks","version":"1.0","type":"link"}