An amazingly clear and brilliant lab grown quartz crystal from the former Soviet Union. Unlike crystals grown in other countries, this one shows all rhombohedral faces growing equally fast. The Soviet scientists
Laboratory-Grown Diamonds (Diamonds Grown in a Lab) | GIA
Vorteile Laboratory Grown Diamonds - Green World Diamonds
Losse diamanten - ecodi.nl
Labordiamant vs. natürlicher Diamant
Schmuck Karlsruhe - Ohrstecker "Tali Trio" von GOLDAFFAIRS