A classic setting that never goes out of style. The stone is held securely in place by evenly spaced prongs of metal. The number of prongs varies according to the stone's shape, although 3, 4 and 6 prongs are most common. Great setting for showing off the beauty of stones since it allows the maximum amount of light to enter from all angles. Used to set earrings, necklaces, bracelets, and rings. Note: Four-prong settings are commonly referred to as "Tiffany" settings, since the founder of Tiffany & Co. originally developed it in 1886.