Gemstones of New Jerusalem: Simulated Stones is a recreation of what the 12 foundation stones of New Jerusalem mentioned in Revelation 21:19-20 probably looked like. These are simulated stones, not real stones. This recreation is based on the Greek. Information about each stone is listed on the back of the box. The stone sizes are about 3/4 of an inch wide. They are in a clear plastic box 4 1/2" by 3 1/2".