Research Article Search Results
Ruby with Synthetic Overgrowth Lining Cavities
New Production of Sapphire from Matepwende, Tanzania
A Multicore Non-Bead Cultured Pearl
Fireworks Display in Russian Emerald
The inclusion scene in a Russian emerald resembles fireworks illuminating a night sky.
Zoned Trapiche Emerald with Goshenite Overgrowth
Arzakite Inclusion in Ruby from Mogok
Colored Bands in CVD-Grown Diamond
Classification of Gem Materials Using Machine Learning
Explores the application of several machine learning models to complement traditional gem classification approaches.
Observations of Oval-, Pear-, and Marquise-Shaped Diamonds: Implications for Fancy Cut Grading
Presents findings from observations of oval-, pear-, and marquise-shaped diamonds, laying the groundwork for a fancy cut grading system.
Splendors from the Deep: Historic Treasures from a Spanish Shipwreck
The Extraordinary Backstory of Natural Diamonds: A Diamond Is (and Has Been) Forever
Two Imitation Melo Pearls
GIA’s Hong Kong and Bangkok laboratories report on imitation pearls with a striking resemblance to natural Melo pearls.
