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

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.

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.

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

A first-person account of cutting a 3,019 ct piece of white opal to create a 1,040 ct gem with play-of-color across the surface.

驚くほど「Superdeep（とても深い）」な起源を持ち、古代の海洋と関連するブルーダイヤモンド

JDTプログラムはデザイナーに技法とテクニック、トレンドを超えるデザインを創り出す自由を与えます。

大胆な配色のファッション傾向はカラーゾーニングまたはバンディングとして知られる多種の色を持つ宝石の芸術的な色の組み合わせに見られます。

ロックフェラーの宝石とファンシーブルーダイヤモンドが、2018年春のオークションで目玉商品となりました。

Juliet Weir-de La Rochefoucauld著『Women Jewellery Designers（女性のジュエリーデザイナー）』のレビュー

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.