Garnets, Sapphires, Opals, and Tarnish on High-Purity Gold
Synthetic Moissanite: A New Diamond Substitute
Freshwater Pearls, Blister and Loose, with Their Host Shells
What Have Diamond Ages Taught Us?
Diamond ages offer insight into continent evolution spanning billions of years.
Perettiite-(Y) and Tusionite Inclusions in Phenakite from Myanmar
Coated Lawsonite Pseudomorphs Presented as Chromian Lawsonite
The Beauty and Value of Inclusions, Plus Double Stars and Corundum from Tajikistan
Challenges and Opportunities
Responsible Mining, a Trek to Chivor, and a Dash of Fabergé
A Preliminary Study on the Separation of Natural and Synthetic Emeralds Using Vibrational Spectroscopy
Reports preliminary findings—based on FTIR and Raman spectrometry of more than 300 samples—on distinguishing natural and synthetic emeralds using vibrational spectroscopy.
