The shape, known as a Budded or Apostle's Cross, features a Christ figure as the Good Shepherd bringing peace to his flock, as the lion and lamb lay together at his feet. Each trefoil features a botanical resurrection symbol, the lotus, lily, dogwood, and bursting pomegranate. The grapevines filling the form remind us that Christ is the Vine and we are the branches. The garnet gemstones placed in four corners symbolize the blood of Christ and remind us of our call to take the Gospel to the "corners of the earth".
The details of the cross design can be viewed a bit larger on the Episcopal Cafe art blog.