"The best way to seperate Chatham Created Emerald from Natural:
#1, get a GIA education. Even the 1 week class is good.
#2, Seperation is made by identifying something forign in the
stone, not the emerald part. That is identical. What is not
identical is where the crystals grew. Emeralds from Colombia have
different inclusions from those found in Africa. The same holds
true for those found in San Francisco. Platinum crystals don’t
belong in a natural. Calcite is never found in a created emerald.
The list goes on, but that is the basis for seperation: look for
something that goes toward one direction or the other.
#3, THE DATE LINE PIECE, NBC
The public should aways be informed of treatments but rarely is.
The industry is in for a wake up call. They have overslept this
one by far. tom chatham