Question, the guy I've bought from (only-jade) has bought a couple bangles for me from another seller. They appear to have good certificates (good lab and they pull up online) and they "check out" via specific density, 10x loupe and use of the black light. One of my bangles is "icy" with just a tiny touch of green threading in it. It has some tiny light brown "seeds" in it and "cotton" but otherwise is clean. A friend who knows jade looked at it and said she thought it was treated based solely on "feel". When I asked him he said he was certain it was grade A but if I want to send it on to GIA for certification I should, and if it comes back that it's been treated he will refund the cost of the bangle and the test 100%. Should I send it in? Is there any way to know that it's polymer treated other than testing at a lab? I think it is fine but I am considering another expensive bangle from this same seller and don't want to compound a mistake if I've made one (yes, last night's mis-adventure has me a bit nervous!)