This is the third one I've seen on Ebay, there was a post here on the club somewhere when the 2nd one was up, I think a club member and or Mica contacted the seller and asked them to pull the auction, I think the seller was an Alembic owner and /or club member and graciously pulled the auction, returned the logo to Alembic and was given a $$$ credit if I recall correctly.
I think it would make a nice necklace tho, but it would be in very poor taste to even think about putting it on an instrument other than a REAL Alembic.
oh and I think there also was an Alembic jewelry logo up recently as well.......
B.