With the exception of two faceted stones and one rough stone, the samples were fabricated as optical wafers perpendicular (PK-7 and PK-8) or parallel (PK-5, PK-10, PK-9, RUS-8, MOZ-2, BM-1, MOZ-1, ...

U Ko James said the largest fine spinel he had observed from Man Sin was a beautiful 35 ct rough stone, but it was not clean. Fine large gems were, and still are, extremely rare. Since 2006, he has ...

US President Donald Trump warned Vladimir Putin Tuesday that he was "playing with fire," in a fresh jab at his Russian counterpart as he weighs new sanctions against Moscow over the war in Ukraine.

The sudden fall of a ransomware supplier once described as the world's most harmful cybercrime group has raised questions about Moscow's role in its development and the fate of its founder. LockBit ...

Special counsel Robert Mueller is examining a previously undisclosed meeting between long-time Donald Trump confidante Roger Stone and a Russian figure who allegedly tried to sell him dirt on Hillary ...