Synthetic Gem Materials and Simulants in the 1990s
The 1990s witnessed important developments in the commercial viability of gem-quality synthetic diamonds.
An Examination of Nontransparent “CZ” from Russia
White, pink and black nontransparent synthetic "cubic zirconia" is currently being manufactured in Russia and marketed primarily in cabochon and bead form.
The Early History of Gemstone Treatments
The author has uncovered many ancient references to the simulation or enhancement of gemstones.
A Simple Approach to Detecting Diamond Simulants
Contrasting the physical properties of diamond with colourless specimens to identify the most problematic diamond simulants.
Cubic Zirconia: An Update
An examination of the skull-melting technique used to produce cubic zirconia, first introduced in 1976, as well as the market status of this diamond simulant and information about its production and quality.
Characterisation of Colourless Coated Cubic Zirconia (Diamantine)
Over the past several years, diamond simulants have entered the market that consist of colourless cubic zirconia reportedly coated with a thin layer (e.g. represented to be 30–50 nm) of nanocrystalline diamond particles embedded in a matrix.