Fei-Cui-Global-Supply-Chain-Research

Fei Cui Global Supply Chain Research – Update

During the Christmas to New Year 2024/2025 period and throughout 2025, the Guild Field Expedition Team traveled to Fei Cui producing areas and market...
Tourmaline inclusion in an emerald from Zambia (Kafubu), (FOV - 1.483 mm).

Determination of Emerald Origin Through the Identification of Solid Inclusions

Introduction The study of solid inclusions (Figure 1) remains one of the most relevant sources of information for determining the geographic origin of gemstones. The...
Different types of amethyst, from 'Rose de France' to lavender to reddish, in rough form and in various cuts and sizes.

Amethyst’s Regal Allure

Re-visiting a gemstone that has been in the jewelry world for hundreds of years—and written about many thousands of times—can be a daunting task....
Burmese vivid red spinel pair.

Rediscovering Spinel: A Legacy Reborn

There is a quiet poetry to spinel—a gemstone that has adorned the crowns of kings, yet spent centuries living under another’s name. In the...
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