Testing reveals the first synthetic nano-polycrystalline diamond (NPD) to be detected by a gem lab.
Read MoreFive large HPHT synthetic diamonds, examined at GIA’s Hong Kong lab, indicate the advances that HPHT growth technology has made in quality and size.
Read MoreG&G Brief presents an overview of the content of the Autumn 2015 issue of Gems & Gemology.
Read MoreA summary of the content found in the Autumn 2016 issue of Gems & Gemology.
Read MoreExamination of commercially-available "shell pearls" reveals imitation material.
Read MoreReview of Martin Chapman and Amanda Triossi’s The Art of Bulgari: La Dolce Vita and Beyond, 1950–1990.
Read MoreReview of Ronald McIntosh and Warren Anderson's Kentucky Agate: State Rock and Mineral Treasure of the Commonwealth.
Read MoreReview of Suzanne Ramljak's Unique by Design: Contemporary Jewelry in the Donna Schneier Collection.
Read MoreReview of Richard Hughes’s Ruby & Sapphire: A Collector’s Guide.
Read MoreReview of Paul Koudounaris’s Heavenly Bodies: Cult Treasures and Spectacular Saints from the Catacombs.
Read More