Synthetic and or Simulants in my understanding are not just as “real” as a natural gemstone. Synthetic gemstone have all the same properties as natural gemstone but it is created by man in a lab. Simulants are man made materials made to look like a natural gemstone where it may or may not have all the same properties. I guess it can be further defined as this is a real synthetic gemstone and this is real natural gemstone. Are they the same?