Synthetic Gem Materials and Simulants in the 1990s
The 1990s witnessed important developments in the commercial viability of gem-quality synthetic diamonds.
A Simple Approach to Detecting Diamond Simulants
Contrasting the physical properties of diamond with colourless specimens to identify the most problematic diamond simulants.
Boron Carbide: A New Imitation Black Diamond
Specimen sold as black diamond identified as ceramic material commonly used in hard-plating applications