I was very disappointed with these earrings.  I have purchased many earrings and a ring from Amazon.com Collection and have kept buying because the quality has been surprising good for the low prices.  The sapphires, however, were too good to be true.  The stones are black.  They are also small for a 6mm compared to others I have bought.  I then purchased the $50 pair of lab created sapphire studs and the difference was night and day.  Still a good price (for sapphires) and the blue is stunning.  All the other earrings I bought for $20 (amethyst, peridot, garnet, citrine, topaz) were beautiful stones, clear with good color.  These were the only exception.