Zoning In on Liddicoatite Exhibit
An exhibit at the Tucson Gem and Mineral Show dedicated to former GIA president Richard T. Liddicoat (1918–2002).
GIA Museum Exhibits in New York
A brief look at GIA's permanent museum exhibit at the New York lab and campus.
Dyed Bone as a Red Coral Imitation
A specimen presenting as red coral is revealed to be dyed bone.
Jewelry Shanghai 2014
An insider look at the May 2014 show, held at the Shanghai Word Expo Exhibition & Convention Center.
Record-Size Natural Moissanite Crystals Discovered in Israel
Natural moissanite crystals found in Israel has broken world records, with evidence of larger crystals in the area.
Jadeite Bangle with the Appearance of Polymer Treatment
A jadeite jade bangle is submitted for lab testing to investigate the possibility of treatment.
Assemblage of Synthetic Ruby in Calcite Matrix
Material set in a calcite matrix and represented as natural ruby is proven to be synthetic.
Shattuckite from the DRC
Rare shattuckite from the Democratic Republic of Congo, as seen at the Tucson Gem and Mineral Show.
Unusual Optical Effect in Blue Sapphire
A bluish violet sapphire shows surprising effects under lab examination.