This ring is a picture of the New Jerusalem. It is a gold shank coming up into a square. The sides are enamelled in the colours of the foundation stones in Revelation 21:19.

There are three pearls on each side representing the twelve gates of the city.

Inside the square on the top is a diamond.  The diamond represents the Glory of God and the brilliance of the city from Revelation 21:11. 

On either side of the diamonds are ruby baguettes representing the blood of the lamb and his sacrifice.

A sapphire baguette sits underneath the diamond representing the river that flows from under the throne and two emerald baguettes on either side of the sapphire the trees for the healing of the nations.