Guardian Emblem

The G Emblem is the crest of the guardians.

Appearance
The crest of all the guardians is the letter G, that comes in two different forms. The Guardains even have a crest each in their own image, inside different shapes.

Lore
The G emblem stands for all the guardians that MiM chose to watch of the children of the world. The crest can be seen in the North's Workshop, on the cover of the book that andantes the newest member and on other objects.

Nicholas St. North, E. Aster Bunnymund, Toothiana and Sanderson Mansnoozie even have crests of their own and they surround the blue G crests; that holds the crystal that MiM uses to show them their newest member. A.K.A. Jack Frost, the Guardian of Fun.

Role in the Crossover
While Jack may have a Guardian crest in his own image, fans see a (RotG) snowflake as his RotBTD crest.