Adventurine?
The description for this listing says "Jade" but the label on the necklace I received says "Aventurine."  Both are green stones, but Aventurine is much more common that jade. I have no idea how to tell them apart.  The pendant I received is a medium cloudy green with some sparkle. The pendant contains a real stone versus plastic.  I chain is 17" which is choker length.  It's very short.  There is no way to remove the pendant from the chain to put it on a different chain if you want to use it on a longer chain.  You will have to break this chain to do it.
Rating: 4 stars