英文原版 Gem Identification Made Easy 6th Edition 宝石鉴定一点通 第六版 Antoinette Matlins 精装 英文版 进口英语原版书籍 作者:Antoinette Matlins出版社:GemStone出版时间:2024年01月 手机专享价 ¥ 当当价降价通知 ¥359.00 配送至 广东广州市 至北京市东城区...
宝石鉴定好简单 [Gem Identification Made Easy] 作者:安托瓦内特.马特林斯,A.C.布莱诺著;张健,池丽霞译出版:中国友谊出版公司 2017.9页数:452定价:128.00 元ISBN-13:9787505738805ISBN-10:7505738801 去豆瓣看看 想要 拥有 00暂无人评价... 目录作者简介内容简介 《宝石鉴定好简单》全面而系统地介绍了有关宝石...
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gem identification等多个文件钻石及分级在市场上取得成功.pdf,©2002 The Gemological Institute of America s : Protected under the Berne Convention. No part of this work may be copied, reproduced, transferred, or transmitted in any form or by any means wha
Gem Identification Made Easy, Fourth Edition: A Hands-on Guide to More Confident Buying & Selling by Antoinette L. Matlins, Antonio C. Bonanno (2009). A beginner's guide to gemology, this is one of the best-selling gemology books of all time. Gemmology by Peter Read (2005). Standard te...
宝石鉴定Gemstone identificationJewelry fakes are mainly made in the field of material fraud, shoddy materials posing as genu
We also provide an easy, fast verification service. This ensures that you will be able to quickly verify any certification we provide. Gemstone transactions always run the risk of including the transfer of artificial gems. We strive to eliminate this issue with a solution that you can depend...
Filling Guide【第二部分】This survey is divided into 3 parts.【Part One】Stakeholder Identification (2 questions in total)【Part Two】Assessment of the Impact and Importance of ESG Issues (23 questions in total)【Part Three】Stakeholder Communication (5 questions in total)Scoring InstructionsThe ...
The main scope of gem analysis is the identification of a gem, finding out the material of which it is made, whether it is natural or synthetic and if it has been treated/enhanced. The identification depends to some extent on whether the gems are in the rough state, polished, cut, and...
your support!Filling Guide【第二部分】This survey is divided into 3 parts.【Part One】Stakeholder Identification (2 questions in total)【Part Two】Assessment of the Impact and Importance of ESG Issues (23 questions in total)【Part Three】Stakeholder Communication (5 questions in total)Scoring Instr...