User Activity

Are there any rules about how big a difference there can be between a stated starting price and seller's reserve price in the Cars, Bikes & Boats category? I was recently highest bidder on an item that attracted bids to 28% above the listed starting ...
The seller of a listed jewellery item specified colour and clarity of gemstones and I queried whether the item was graded according to the GIA scale (recognised industry scale) and by whom. The answer I got was "There is nothing wrong with the ring" ...