Research Article Search Results
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.
Arzakite Inclusion in Ruby from Mogok
The Extraordinary Backstory of Natural Diamonds: A Diamond Is (and Has Been) Forever
Colored Bands in CVD-Grown Diamond
Splendors from the Deep: Historic Treasures from a Spanish Shipwreck
Zoned Trapiche Emerald with Goshenite Overgrowth
“Out of the Darkness” …and Into the Light of Diamond Fluorescence
New Production of Sapphire from Matepwende, Tanzania
A Multicore Non-Bead Cultured Pearl
Two Imitation Melo Pearls
GIA’s Hong Kong and Bangkok laboratories report on imitation pearls with a striking resemblance to natural Melo pearls.
“Cotton Pearl” Imitations
An in-depth look at a new pearl simulant gaining popularity in the fashion jewelry market.
Akoya Cultured Pearl Prize in an Arcade-Style Claw Game
Arcade-style games in Japan dispense akoya pearl jewelry as prizes.
