An approach to understanding the factors in the emerald enhancement clarity grading system used at CDTECGemlab
Javier Garcia-Toloza, Juan David Rincón, Cristian Ochoa, Julio Cedeño Carlos
Padparadscha Sapphire & heat treatment
In 2018 the Padparadscha engagement ring of Princess Eugenie (Figure 1), the niece of the king, gave
Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color Origin and Latest Research Results
The Argyle Mine was by very far the largest producer of pink to red diamonds worldwide and the only