Serpentine Cabochon with Unusual Olive Green Color
A green cabochon from China resembling jadeite is found to be antigorite, a member of the serpentine group.
Coated Rock Crystal Imitation of Ruby
A coated rough rock crystal resembles a purplish red ruby.
Color-Change Synthetic Cubic Zirconia as Peridot Imitation
A greenish yellow material set in a ring as a peridot imitation is identified as synthetic cubic zirconia.
Spring 2015 G&G Examines Blue Spinel, Chinese Jewelry Design and the Latest in Synthetics
G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
Moldavites: Natural Or Fake?
A gemological investigation into natural moldavite and its more recent imitations.
Dyed Green Marble Imitating Jadeite
What appeared to be high-quality jadeite was actually dyed green marble with calcite as the main mineral.
Dyed Marble as a Purple Sugilite Imitation
Investigation of a purple bangle identified it as a dyed marble imitation of sugilite.
Books: Unique by Design: Contemporary Jewelry in the Donna Schneier Collection
Review of Suzanne Ramljak's Unique by Design: Contemporary Jewelry in the Donna Schneier Collection.
Books: The Art of Bulgari: La Dolce Vita and Beyond, 1950–1990
Review of Martin Chapman and Amanda Triossi’s The Art of Bulgari: La Dolce Vita and Beyond, 1950–1990.
Books: Ruby & Sapphire: A Collector’s Guide
Review of Richard Hughes’s Ruby & Sapphire: A Collector’s Guide.