jjtt, no I haven't sent mine in for testing. Jojo gives a government certificate with an ID number. You can check it online. I haven't done this because I researched for a long time after being duped into buying a grade B jade bangle in San Francisco China Town (at a prominent jewelry store). Once you research enough and look at enough bangles, B jade for the most part is quite obvious. Visually, they have a translucency which would cost tens of thousands if natural. Some are done well and are not as obvious, but there are always other signs. For example, they always have an etched surface, they are lighter than natural jade, they don't ring the same way when struck as A jade, and they will almost always fluoresce under either long or short wave UV light. I bought such a light and discovered my that my China town bangle is B jade. Tested my new ones, and are different in all these ways. I am beyond confident that they are A grade, and jojo promises to refund anyone ten times the cost if an item is found to be B jade. They don't buy their products from other jade dealers. They buy the boulders at auction from Burma and process them. I think this is where B jade can slip in, when people buy jade that has been handed down from many dealers. The closer you can get to the source, the safer your purchase. I also agree that buying from someone who cuts from rough is the best.
I recommend having yours tested if you are still not sure though. Peace of mind is a GOOD thing
BTW, hope you will share your treasure if you get it!
)
But I guess that would be the price nowadays for a quality like that