Name: Dr.Vitaly Efremov
Email: @vitaly
Address: United Institute of Geology, Geophysics &Mineralogy SB RAS
Pr.Koptyga 3,Novosibirsk-90,630090 Russia
We are produce created gems: Hydrothermal: emerald, saphire, ruby,
Chohralsky: alexandrite, Synthethic diamonds up to 4ct (rough)