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Features of Synthetic Diamonds

Sally Eaton-Magaña and Christopher M. Breeding, August 6, 2018

Presents a visual guide to the growth processes and major gemmological spectroscopic features of synthetic diamonds.

Study of the Blue Moon Diamond

Eloïse Gaillou, Jeffrey E. Post, Keal S. Byrne, and James E. Butler, January 30, 2015

Presents spectroscopic and phosphorescence data of the Blue Moon, a 12.03 ct Fancy Vivid blue diamond discovered at the historic Cullinan mine in early 2014.

A pile of near-colorless HPHT synthetic melee

Article

Diamond Market Forecast: Declining Credit, Soft Prices and Lab-Grown Diamonds

Russell Shor, February 18, 2019

Despite the generally strong year for jewellery retail, the diamond industry continues to face problems with credit, patchy demand and soft prices.

Exceptional Pink to Red Diamonds: A Celebration of the 30th Argyle Diamond Tender

John King, James E. Shigley, and Claudia Jannucci, January 30, 2015

Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.

Eight HPHT faceted synthetic diamonds from AOTC Group

Near-Colourless HPHT Synthetic Diamonds from AOTC Group

Ulrika F.S. D’Haenens-Johansson, Kyaw Soe Moe, Paul Johnson, Shun Yan Wong, Ren Lu, and Wuyi Wang, April 30, 2014

Presents the gemmological and spectroscopic properties of a suite of synthetic diamonds grown by AOTC using high pressure and high temperature.

Yellow diamond 17.88 ct., in tweezers, in front of selection of white octahedra, 34.11 ctw. These diamonds came from Kao Mine, Lesotho.

Rough Diamond Auctions: Sweeping Changes In Pricing and Distribution

Russell Shor, January 30, 2015

Examines the growing percentage of rough diamonds being sold through auctions, a shift that has caused price volatility while opening up supply to more manufacturers and dealers.

Article

Coronavirus May Cut Chinese Demand; Diamond Companies See Better Times

Russell Shor, February 10, 2020

The economic impact of the coronavirus in mainland China and Hong Kong. Plus, an update on the diamond market and gold jewellery.

A man and a woman sit at a table with a couple of dozen gems in front of them. They are looking at them and making notes.

Article

Alumni Marry – and Create Award-Winning Fluorescent, Phosphorescent Diamond Necklace

Jaime Kautsky, November 3, 2017

Alumni couple, inspired by their mums, create beautiful jewellery – and a beautiful life – together.

Article

2019 in Review: Diamond Trade Begins Recovery, Jewellery Retail Sector Blooms Late and Extraordinary Auction Sales

Russell Shor, December 16, 2019

2019: A year of ups and downs in the gem and jewellery industry, including diamonds, retail, auction sales and laboratory-grown diamonds.

Article

Autumn 2016 G&G: CVD Synthetic Diamonds Survey, Reversible Colour Change in Blue Zircon

Jennifer-Lynn Archuleta, October 31, 2016

A summary of the content found in the Autumn 2016 issue of Gems & Gemology.

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