多年来,知名的公协会和学院机构皆仰赖并对康斯坦丁.怀德渊博的知识和多年的专业充满信心。他是联邦宝石和鑽石工业协会、德国宝石之路促进会、科布伦茨工商会和德国宝石博物馆促进协会的成员。十多年来,他担任德国宝石学协会(DGemG)的副主席,同时也是DSEF德国宝石实验室研究基金会董事会成员。在国际事务上,他是珠宝商贸易委员会(JBT)成员,也在国际彩色宝石协会(ICA)理事会任职九年,并自1984年以来即是美国宝石研究院GIA的校友会员。
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