Скачать с ютуб From Rough to World Record - Estrela de Fura - 55.22 ct в хорошем качестве

From Rough to World Record - Estrela de Fura - 55.22 ct

The short documentary, directed by GRS CEO and chief gemologist Dr. A. Peretti, along with GRS gemologists Willy Bieri, Lawrence Hahn, and Matthias Alessandri, explores the rough gem, predicts its size, and conducts color grading and UV-fluorescence testing. Surprisingly, it exhibits a striking similarity to the finest Burmese rubies, with a captivating pigeon's blood color and strong fluorescence. If you are looking for more background information on the stone, please read the Q&A with Dr. Peretti: https://www.gemresearch.ch/news/2023/...