Exceptional points (EPs) are unique types of energy-level degeneracies that occur in non-Hermitian systems. Since their ...

London-listed Gem Resources has sold 8 130 ct in its first sales tender for emeralds produced from the Gravelotte mine, in ...

Witness the incredible process of diamond formation deep within the Earth, where extreme pressure and heat turn carbon into one of the world’s most coveted gems. Learn about the geological conditions ...