The three orange circles represent three cannon balls which represent the values of faith, hope and love. Separately, these three values are excellent character attributes but when they are combined, they are invincible. Each Grey boy should strive to embed each of these attributes deep in the heart.
The knight's head symbolises courage. This characteristic is essential in order to succeed in life and to overcome future difficulties. Many years ago, the knight's head appeared on the emblems of untitled gentlemen. This is rather appropriate, because even today, Grey boys are referred to as Grey Gentlemen.
The white unicorn represents vigour and virility and the white colour denotes peace. As indicated by the unicorn, every Grey boy must be ready to enter the world with peaceful intent, yet with vigour.
The sun symbolises the dawning of new generations. A Grey education empowers the boys to rise - ready to build on the legacy of past generations.
The school motto derives directly from the Latin:
NIHIL STABILE QUOD INFIDUM
Nothing is steadfast which is not true.