Here is a $15,000 8.55Ct Australian Opal Oval. This is part of a jewelry store stock that we will auction this week. This large 8.55Ct Opal is full of colors and lots of sparkle. Opal is the October Birthstone. If you collect Gems or love to design your own jewelry- this will look magnificent in the center of a ring or pendant. This 8.55Ct Opal has a retail replacement cost of $15,000 and this will be auctioned to the highest bidder at $1 No Reserve.