I think if you delve into the Orchid archives a bit you will see
that many knowledgable Orchidites think that the very large majority
of gemstones are treated, and the rarity of certified untreated
stones makes them very expensive. Not all treatments are considered
dishonest; there are some treatments that are done at the mine and
considered normal and unavoidable.
I’m in the Boston area; email me off -list if you’re nearby and
would like to hear about gem sources around here. For catalog
sources, Rio Grande is a very good one for people without resale
license; it gives a little about the treatments for
each stone. You can request one at www.riogrande.com.
Linda in steamy, stormy MA