I purchased 2 sets of Akoya pearl earrings for my wife and 1 pair of Black pearl earrings, and 1 pair of the south seas large white pearl earrings. One of the Akoya 9.5 mm pearls came apart and was lost, and one of the large south sea pearls 11mm came apart and is lost. I purchased these for her and the south sea 11mm for our 25 wedding anniversary present. To say the least she is heart broken and I'm very upset with the quality of the product. I think that COSTCO should at least refund our money for the earrings. David Brandt 735 Thorndale Dr. Elgin, Il 60120 847-468-9564 read full review »