Separating Glass-Filled Rubies Using the DiamondView
The DiamondView instrument is able to identify glass as the filler in a pair of heart-shaped rubies.
Preliminary Observations on Facet-Grade Ruby from Longido, Tanzania
Microscopic observation and trace element analysis is performed on rubies from Longido.
Ruby and Sapphire from Muling, China
An emerging corundum deposit in north-eastern China is discussed.
An overview of the 2016 gem shows.
Wheel of Light’s Mesmerising Optics
A closer look at the Spectrum award-winning pendant from Nature’s Geometry.
Rubies from a New Deposit in Zahamena National Park, Madagascar
A field expedition from GIA Bangkok explores a new ruby deposit and collects specimens for study.
Unusual Composite Ruby Rough
In this composite, synthetic ruby rough attached to two natural ruby slabs was fashioned to imitate natural material.
Coated Lawsonite Pseudomorphs Presented as Chromian Lawsonite
Samples composed of lawsonite pseudomorphs were coated to make them appear deep green and imitate chromian lawsonite crystals.
Assemblage of Synthetic Ruby in Calcite Matrix
Material set in a calcite matrix and represented as natural ruby is proven to be synthetic.
Winter 2012 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.