Gem Market Pulse – March 2017

Expectations for 2017 are high as the market senses perceived pro-growth business environment. Featured gem is Chalcedony…. Tucson Gem and Mineral Shows have always been looked to as a fairly reliable measure of what the gem trade can expect for …

Secrets of the Gem Trade

Richard W. Wise, GG Hardcover, 385 pages 2nd Edition Brunswick House Press, 2016 ISBN: 9780972822329 $99.95 Most gem professionals are familiar with the first edition of this large volume by Richard Wise. It has been sold worldwide and celebrated by …

Cuprian Tourmaline

Discovery of vivid blue, green, and purple-to-violet tourmalines, a.k.a., “Paraíba” in Batalha, Brazil in 1982 changed the way the gem market perceived tourmalines. The unquestionably vivid colors were due to copper and this color agent was not documented in tourmaline …

Hackmanite

Introduction Hackmanite, Na8Al6Si6O24(Cl2,S), is the rare variety of the mineral species sodalite. Sodalite is a translucent to opaque, dark blue to violet-blue material that is used for jewelry purposes, typically fashioned as cabochons or beads, while hackmanite is better characterized …

Diamond Market

Rough diamonds doing better while polished diamond prices struggle. The market is at odds with itself—again! New Canadian diamond mine, Gahcho Kué in Canada’s Northwest Territories, promising source of large fine quality diamonds. The year 2017 started with a strong …

The Burma Embargo

In 2008, the U.S. signed into law the “Tom Lantos Block Burmese Jade Act affecting both rubies and jade from being exported to the U.S. This past October, the ban was lifted. What were the effects of this ban over this long …

Gem Market Pulse February 2017

The U.S. colored stone trade expectations for the year 2017 shows are very upbeat. An update on Chinese freshwater cultured pearl pricing…   Numbers indicate that online shopping had a significant rise during the holiday season compared to the previous …

Gem Market Pulse January 2017

Gem industry optimistic heading into new year…warning on ruby misrepresentations Heading into the new year, there is optimism among many in the industry. Early reports from retail jewelers show that the holiday shopping season was overall a little better than …

Market Trend-Burmese Ruby

Ruby, the king of gemstones, has traditionally been much rarer than sapphire in nature, although both are varieties of the same mineral. This rarity is a major factor in pricing fine and extra fine quality ruby. The classic Burmese ruby …

Ruby & Sapphire A Gemologist’s Guide

By Richard W. Hughes with Wimon Manorotkul & E. Billie Hughes RWH Publishing/Lotus Publishing 1st edition, 1st printing. Printed in Thailand. ISBN 978-0-9645097-1-9 707 pages Ruby & Sapphire A Gemologist’s Guide is the much-awaited work of famed gemologist Richard Hughes. …

Gem-A Conference London

The Gem-A conference each year is not only a highly respected educational conference drawing from many countries globally but also a “celebration of students” as Alan Hart, new C.E.O. for Gem-A stated in his opening. A wide range of speakers, …

Clinohumite

Introduction Clinohumite, (Mg,Fe)9(SiO4)4(F,OH)2, is a mineral species in the humite group which also includes humite, chondrodite, and norbergite. These species are easily confused with each other as they have similar properties that often overlap. The relative amounts of hydroxyl and …