本系列第 1 部分（共 5 部分）：有色宝石（非钻石）的价值要素、设计和切工品质。本文讨论了影响有色宝石价格的主要价值要素。

recently identified mineral is found, in whisker-like form, in a gem-quality tanzanite host.

An overview of the Summer 2018 Gems & Gemology content.

Presents a visual guide to the growth processes and major gemological spectroscopic features of synthetic diamonds.

Analyzes the chemical composition and inclusion characteristics of this ancient artifact.

A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.

Summarizes data collected on more than 15,000 natural blue/gray/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this color range.

Examines Japanese “Kasumiga” freshwater cultured pearls, which grow in a variety of colors.

Characterizes a suite of 40 natural brown to black diamonds from this deposit so that they can be distinguished from suspected treated black diamonds.

Summarizes data collected on more than 15,000 natural blue/gray/violet diamonds examined by GIA during the last decade and examines the mechanisms that produce this color range.

The first installment of G&G’s newest section explores how natural diamonds shed light on the mystery of water found in Earth’s deep mantle.

纽约州，纽约市 — 2018 年 8 月 1 日 — 著名国际科学期刊《自然》登载的封面文章中提及的新研究显示，作为最罕见的彩色钻石之一，蓝色钻石是在极端深度下形成的（约比大部分钻石深四倍）；并惊奇地发现其颜色可能由硼元素所致，这些硼元素蕴含于远古海洋层中，因构造板块运动被带到了地幔深处。

JDT program gives designer the skills and techniques – and freedom – to create the designs that move past the trends.

撞色流行趋势可见于以色域或色带闻名的多色宝石艺术色彩组合中。

2018 年春季拍卖会的闪亮之星就是洛克菲勒珠宝以及蓝色彩钻。

Review of Women Jewellery Designers by Juliet Weir-de La Rochefoucauld.

The Mogok Stone Tract of central Myanmar (Burma) is one of the world’s most famed sources of colored stones, particularly ruby, sapphire, and spinel.

赏心悦目的花园生物和花卉是最受欢迎的主题，它们被巧妙地转化成维多利亚时期、新艺术和现代的珠宝设计。