Research Article Search Results
Cutting Diffraction Gratings to Improve Dispersion (“Fire”) in Diamonds
Suggested Reading on Rubies and Their Inclusions
Suggested Reading on Rubies and Their Inclusions
Data Supplement
Compares the image quality provided by real-time microradiographic imaging (RTX) units fitted with two different detectors: an image intensifier (II) and a flat panel detector (FPD).
Corundum with Spinel Corona from the Tan Huong–Truc Lau Area in Northern Vietnam
Explains the reactions responsible for the formation of a well-developed reaction rim of spinel that surrounds the corundum core in some specimens from this deposit.
D-Color Natural IIa Diamond with Walstromite Inclusion
Nephrite Bracelet with Filled Cavity
Strong Pinkish Purple Freshwater Bead-Cultured Pearls
Spectral Characteristics of Pinctada Mazatlanica and Pinctada Margaritifera Pearl Oyster Species
Examination of shells from on P. mazatlanica proves the similarities between that species and P. margaritifera.
Coated Lawsonite Pseudomorphs Presented as Chromian Lawsonite
Diagnostic Features and Heat Treatment of Kashmir Sapphires
Today, only by combining different gemological tests with years of practical experience, can a conclusive determination of the origin of a sapphire be made.
What Have Diamond Ages Taught Us?
Diamond ages offer insight into continent evolution spanning billions of years.




