An unusual diamond with another diamond moving freely inside was mined in Yakutia at the Nyurba mining and processing division of ALROSA. Due to its peculiarity, the stone resembles a traditional Russian Matryoshka doll. According to the experts who have studied the find, this is the first such diamond in the history of global diamond mining.
source/image: alrosa
According to the experts who have studied the find, this is the first such diamond in the history of global diamond mining. It may be over 800 million years old.read more: alrosa
source/image: alrosa
Despite its complex structure, it weighs only 0.62 carats (0.124 grams) and has maximum dimensions of 4.8 x 4.9 x 2.8 mm. The internal cavity volume is 6 cubic mm and the internal crystal volume is 1.6 cubic mm with an estimated weight of 0.02 carats (0.004 grams). The inner diamond has a tabular shape and dimensions of 1.9×2.1×0.6 mm.
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Specialists of the Yakutsk Diamond Trade Enterprise discovered this unusual diamond during a sorting process. They handed it over to the Research and Development Geological Enterprise of ALROSA. There it was studied using several methods, including Raman and infrared spectroscopies, as well as X-ray microtomography.
Based on the results of the study, the scientists made a hypothesis about how the crystal was formed. According to them, there was an internal diamond at first, and the external one was formed during the subsequent stages of growth./ alrosa
