Real Gemstones of New Jerusalem is a recreation of what the 12 foundation stones of New Jerusalem mentioned in Revelation 21:19-20 probably looked like. These are real stones. The gems are low grade quality not cut but polished. This recreation is based on the Greek. Information about each stone is listed on the bottom. The stone sizes are about ï¿½ of an inch to 5/8 inch wide. They are in a clear plastic box 4 1/2" by 3 1/2".