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 …

Colored Stone Market

Dealers are confident that the new year will see an uptick in business for the U.S. colored stone trade. Expectations for the Tucson Gem shows are very upbeat. It is expected that business at the show will be driven by …

Connoisseurship: Grading Special Cases – Grading Pearls

Think of the beautiful glowing skin of a healthy baby or the dewy complexion of a beautiful young woman. These are excellent analogies because healthy skin has qualities similar to the skin of a pearl, and it is these qualities …

Gem Market Pulse – November 2016

Synthetic Diamonds There is a growing concern over undisclosed synthetic diamonds, especially in melee sizes detected in salted parcels. Consumer confidence is being threatened due to an increase in undisclosed synthetic diamond entering the market. Recent announcements of CVD production …

Market Trend: Purple Garnet

Availability of bigger and higher quality garnets occurring in a range of colors, including the color-change variety, has been noticeable during recent gem shows. The use of garnets as a gem material has been known for thousands of years. Garnets …

Northwest Jewelry Conference Challenges Perceptions

The sentiment echoed by participants of the fourth annual Northwest Jewelry Conference (NWJC), August 12-14 Seattle, Washington, was “thought-provoking.” While history, artistry and collectability have become hallmarks of the NWJC, students were drawn into interesting conversations regarding Rene Lalique’s darker …

Kornerupine

Introduction Kornerupine is a mineral species with the formula Mg3Al6(Si,Al,B)5O21(OH). It crystallizes in the orthorhombic system. The minerals kornerupine and prismatine were once considered to be the same mineral, but microprobe analysis proved that the two were distinct species with …