De Beers’ rough diamond sales were down 18 percent year-over-year in its latest round of sales.
GIA’s Winter Quarterly Is All About Natural-Color Diamonds
Gems & Gemology also includes a chart of inclusions for natural, lab-grown and treated diamonds.
Carlsbad, Calif.—The Gemological Institute of America’s winter 2018 edition of Gems & Gemology covers a variety of gemstone-related topics, but with a particular emphasis on natural colored diamonds.
The leading article, “Natural-Color Pink, Purple, Red and Brown Diamonds: Band of Many Colors,” delves into the current science available on the stones, with information backed by the more than 90,000 pink to red diamonds GIA has analyzed.
It features information gleaned from researchers Sally Eaton-Magaña, Troy Ardon, Karen Smit, Christopher Breeding and James Shigley.
Another of the quarterly journal’s features is “The History and Reconstruction of the Amber Room,” a piece on the remaking of an 18th-century Russian “cultural treasure” by GIA Senior Industry Analyst Russell Shor.
“The Color Origin of Gem Diaspore: Correlation to Corundum” is exploration, as is the creation of the spinel rim in the article, “Corundum with Spinel Corona from the Tan Huong-Truc Lau Area in Northern Vietnam.”
The issue also delves into a study on the internal structure and identification of Pipi pearls in “The Gemological Characteristics of Pipi Pearls Reportedly from Pinctada maculate,” by Nanthaporn Nilpetploy, Kwanreun Lawanwong and Promlikit Kessrapong.
Lastly, Nathan Renfro, John Koivula, Jonathan Muyal, Shane McClure, Kevin Schumacher and Shigley created a brief article with a fold-out wall chart outlining diamond inclusions in natural, treated and lab-grown stones.
The G&G Winter 2018 issue is available for free on the GIA website, along with every issue of the publication since 1934, and in print by subscription or for single-issue purchase in the GIA store.
The Latest
Sponsored by the Las Vegas Antique Jewelry & Watch Show
The Patek Philippe expert will serve as personal curator for the brand-focused company.
With Ho Brothers, you can unlock your brand's true potential and offer customers the personalized jewelry experiences they desire.
The 553-square-foot shop is aboard the Carnival Jubilee cruise ship.
NDC filed a complaint against Skydiamond for use of phrases like “diamonds made entirely from the sky.”
John Carter received the AGS’s highest honor Tuesday afternoon at Conclave in Austin, Texas.
For over 30 years, JA has advocated for the industry, fought against harmful legislation and backed measures that help jewelry businesses.
LVMH said the company performed well despite an uncertain geopolitical and economic environment.
B&D Sales and Service held a ribbon-cutting event for its new location in Cranston, Rhode Island.
It’s ultra-feminine and filled with gold, pearls, and soft pastels.
Emily Highet Morgan and Emily Bennett have joined the agency’s team.
Its updated book for mountings is also now available.
She has been with the organization since 2010, most recently serving as its chief officer of PR and industry relations.
Joyce’s Jewelry sued the bank after cybercriminals drained its accounts of nearly $1.6 million through a series of wire transfers.
He is remembered by loved ones for his loyalty, integrity, and kindness.
Hosted by Freeman’s | Hindman, the sale will take place May 7-8.
The auction house said all 24 timepieces offered in its underground sale of rare and avant-garde watches quickly found buyers.
From lab-grown diamonds and AI to the inevitable Taylor Swift mention, here are some of Conclave’s most intriguing educational offerings.
From cybersecurity liability to trade show coverage, insurance experts share tips on how to build the right policy.
The charm is a modern rendition of the evil eye amulet that has been worn for thousands of years.
Ahead of its trade show next month, TJS awarded free registration and accommodations to one jewelry professional and three students.
By the end of this year, SRK’s diamond manufacturing complexes will achieve net zero emissions, one of an impressive array of achievements.
Members can still sell lab-grown stones, it said, but only natural gems are allowed on the show floor.
He is remembered for his charisma, passion, integrity, kindness, and wit.
The retailer also appointed two new board members, avoiding a proxy fight from a potential buyer.
The bridal collection consists of 35 engagement rings and seven wedding bands.