Real Gemstones of Aaron's Breastplate is a recreation of what Aaron's Breastplate mentioned in Exodus 28:15-21 probably looked like. These are real stones. The gems are low grade quality not cut but polished. This recreation is based on the Hebrew. Information about each stone is listed on the bottom. The stone sizes are about � of an inch to 5/8 inch wide. They are in a clear plastic box 4 1/2" by 3 1/2".