Here we have 177 carats of Wello beads that have truely amazing colors. The photo's will show what they are like. No colors are added to the photo's so when you receive the item you will not be disappointed. Shipping is included and if not 100% satisfied there is a 100% money back guarantee. The opal beads were weighed on digital scales with the thin wire so there will be a very slight weight discrepency. Beads range in size from approximately 5.39 mm diameter to 8.45 mm with an average thickness of about 3.2 mm. Bidding price for these gem opal beads is starting at $15/ct. I reduced the weight trying to estimate what the wire might be. That is why the price per carat is lower than in the description.