In 1903 , Verneuil announced he could produce synthetic rubies on a commercial scale using this flame fusion process .
Frimy and Auguste Verneuil manufactured artificial ruby by fusing BaF and Al O with a little chromium at red heat .
In 1903 , Auguste Verneuil announced Auguste Verneuil could produce synthetic rubies on a commercial scale using this flame fusion process .
Frimy and Auguste Verneuil manufactured artificial ruby by fusing BaF and Al O with a little chromium at red heat .