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Raman Investigations on Two Historical Objects from Basel Cathedral: The Reliquary Cross and Dorothy Monstrance

Henry A. Hänni, Benno Schubiger, June 1, 1998

Two ecclesiastical objects of the late Gothic period (1350–1520) were investigated to identify the gemstones that adorn them.

IMG - ART Beauty Birthstone 84639 636x358

Article

The Beauty of Birthstones Connects Us All

GIA

We’re talking birthstones here and GIA is showcasing them in a big way through spring 2013...

Figure 1. Surbhi’s “Orient” earrings with tanzanite carvings surrounded by blue sapphires, emeralds, white diamonds, and tsavorite garnets with an upper flower-shaped dangle composed of faceted tanzanites, emeralds, and pink sapphires, all set in 18K white gold. The total diamond weight for the pair is 1.60 carats, and the total colored stone weight is 62.23 carats, 48.32 carats of which are from the two tanzanite carvings. Photo by Robert Weldon; courtesy of YNY Jewels Inc. and Karats Inc.

YNY Jewels: Designer Surbhi Pandya

Jennifer Stone-Sundberg and Si Athena Chen, May 23, 2023

Handcrafted jewelry pieces featuring tanzanite carvings stood out at the GJX show.

Details of two engravings representing the treasury of Aachen Cathedral.

The Talisman of Charlemagne: New Historical and Gemological Discoveries

Gerard Panczer, Geoffray Riondet, Lauriane Forest, Michael S. Krzemnicki, Davy Carole, and Florian Faure, May 15, 2019

Reveals new details about this historical jewel and the results of its first gemological analysis.

A flower is one of nature’s most delicate and beautiful creations. It’s fitting that jewelry designers have been spellbound by its charm.

Article

Jewelry that Speaks the Language of Flowers

October 2, 2015

A flower is one of nature’s most delicate delights, so it’s natural that jewelry designers have long found inspiration in them, seeking to capture their fleeting beauty in jewelry.

Three smaller cameos show the progression of craving a cameo from rough shell. They sit in sand alongside a shell with a fully carved cameo on it.

Article

Cameos: Timeless, Miniature Carvings for Jewelry Lovers

Sharon Bohannon, June 23, 2017

The rich history and lore of cameos make them a fascinating avenue into the world of collecting for history, mythology and jewelry buffs.

Figure 9. The parcel of rough spinel on the left, reportedly from Tajikistan, contains pieces weighing up to 48.5 g. The seven faceted spinels on the right (9.04–28.16 ct) were fashioned from some of this rough.

Purplish Pink Spinel from Tajikistan: Before and After Cutting

Nicholas Sturman, March 1, 2009

Purplish Pink Spinel from Tajikistan: Before and After Cutting

This double-sided teardrop ammonite fossil weighs 35.68 ct and was mined from Alberta, Canada. Photo by Robert Weldon, © GIA

Article

Article Explains Ammolite’s Organic Origins and Feng Shui Popularity

Jo Ellen Cole , November 26, 2013

Overview and commentary on the June 2013 Rock & Gem article, “Ammolite: An Organic Jewel.”

Green nephrite man’s ring on a beaded chain

Article

The Nephrite Jade Road: Evolution of the Green Nephrite Market

Tao Hsu, October 26, 2015

Along with the skyrocketing price of white nephrite, there is also a developing market for green nephrite in China. However, limited local supply has forced the Chinese to seek outside resources, opening the door to imports of green nephrite mined in British Columbia, Canada, and Siberia, Russia. This has created the well-developed and well-maintained nephrite jade road that connects the three countries, and which is described in this article.

History of the Chivor Emerald Mine, Part II (1924–1970): Between Insolvency and Viability

Karl Schmetzer, Gérard Martayan, and Andrea R. Blake, October 22, 2020

Chronicles developments at the Chivor emerald mine in Colombia between 1924 and 1970, based on archival records.

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