*During his fight with Erza in the Tower of Heaven arc, in the マンガ his attire is especially designed to withstand disintegration while using his Meteor spell. Though in the anime, he appears to be wearing a skin-tight sleeveless black シャツ with cargo pants.
*During the Tower of Heaven arc, on his コート was a デザイン または mark that looks similar to the Fairy Tail symbol backwards.
*In the アニメ version of the Oración Seis arc, Jellal takes his マント, 隠す from Erigor, rather than a member of Naked Mummy.
*Jellal's Heavenly Body Magic シール is the same as Lucy's Uranometria Magic seal.
*Jellal as Siegrain was in Lucy's "Perfect Boyfriend" list, right on 上, ページのトップへ of Loke.
source: link
*During the Tower of Heaven arc, on his コート was a デザイン または mark that looks similar to the Fairy Tail symbol backwards.
*In the アニメ version of the Oración Seis arc, Jellal takes his マント, 隠す from Erigor, rather than a member of Naked Mummy.
*Jellal's Heavenly Body Magic シール is the same as Lucy's Uranometria Magic seal.
*Jellal as Siegrain was in Lucy's "Perfect Boyfriend" list, right on 上, ページのトップへ of Loke.
source: link

Lucy's list of perfect boyfriends