寶啾寶石 報報: Analysis: The State of the Diamond Industry 寶啾 寶石坊 也有 裸鑽 及 有色寶石 的銷售服務 , 也可以代 客 設計加工 , 歡迎來詢問 , 寶啾寶石坊 提供最好的服務及合理的價位 。 Line 我可詢問 : http://line.me/ti/p/ZmdIHukNFI A shot inside one of the laboratories operated by De Beers's International Institute of Diamond Grading and Research. The workers shown here are using the first version of the Automated Melee Screener, developed to detect man-made diamonds in packets of small diamonds. New York--Although there is no way of knowing how many undisclosed lab-grown diamonds are circulating, analyst Chaim Even-Zohar estimates approximately $750 million worth of gem -quality man-made diamonds entered the supply chain in 2016. He describes the volume of undisclosed lab-grown melee—diamonds sized from a miniscule 0.001 carats to 0.18 carats used in every type of jewelry—entering the market as "staggering." Others also believe there is a reasonable l...
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