据说产自 Batakundi/Basil 地区的蓝宝石
祖母绿品质要素
Kunzite Care and Cleaning
Learn about kunzite's durability and how to care for your kunzite jewelry.
锂紫玉的历史与知识
Kunzite is a relative newcomer to the array of colored stones available for use in jewelry.

GIA 为何要开展研究?
美国宝石研究院 (GIA) 研究项目的重点是钻研天然、合成和经过处理的宝石材料,以开发宝石鉴定方法。为何?因为精准的鉴定对于在销售这些商品时适当披露相关信息至关重要,而适当的信息披露旨在保护购买宝石的消费者。
Revealing “The Angel in the Stone”: The Largest Known Square Cushion-Cut Tsavorite
Book Review: The Secret Teachings of Gemcutting: 50 Classic Gemstone Designs
A Comparison of Modern and Fossil Ivories Using Multiple Techniques
This article provides identification criteria to distinguish between modern and fossil (mammoth) elephant ivory.

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