Disaster, Kimber's Rebellion, Frame Up, Battle of the Bands. 

At which point it is replaced by a more faithful reproduction of the doll's outfit.

The cartoon was pretty faithful to the doll's, except it had a dark pink belt at the beginning, it soon switched to white or grey, and her hair is shown as being completely pink, not blonde with pink streaks. 

Kimber's Rebellion, Frame Up, Battle of the Bands, Starbright Part 1: Falling Star, Starbright Part 2: Colliding Stars, Starbright Part 3: Rising Star, The World Hunger Shindig, In Stitches, Culture Clash, Hollywood Jem Part 2 (reused footage). 

The first produced outfit (that didn't come on a doll) to appear in the show; I'm not even convinced it is, as it's just in a tiny segment in a Misfits video (repeated in a later video)

Jerrica's half doesn't appear until Frame Up.

Kimber's Rebellion, Frame Up. 

Eventually the cartoon version's dress is yellow and the tights are pink as shown in Video Wars. 

We first see this fashion as being really different from the dolls' produced fashion; it's baby blue with white tights and pink ankle boots. 

This is a video-only fashion, yet it is included in the normal Jem wardrobe line with it's own model sheet number.  I didn't notice the cut-out panels at the waist in the cartoon, but they are clearly visible on the original model sheet. 

The Jem Model sheet number for this fashion is J-16. 

This is one of two of the only cartoon-only fashions that debuted on this episode.

Used with permission from Shevona.  See a scan of the actual cel model sheet (I have altered it to fit this page)..
 

Kimber's Rebellion, Frame Up, Battle of the Bands, Starbright Part 2: Colliding Stars, In Stitches, KJem.

The same overall design as the produced fashion, but in purple tones.

Kimber's Rebellion, Frame Up, Battle of the Bands, Starbright Part 1: Falling Star, Starbright Part 2: Colliding Stars, In Stitches, The Rock Fashion Book. 

Jerrica's half isn't shown until Kimber's Rebellion. 

The Jem model sheet number for this fashion is J-3.

Frame Up, Battle of the Bands, Starbright Part 1: Falling Star, Starbright Part 2: Colliding Stars, The Talent Search Part 2, KJem. 

We don't see Jerrica's half until Frame Up.

A strange version of this (I think) appears in Britrock.

The Jem model sheet number for this fashion is J-4. 

Frame Up. 

After this point it's replaced by a much lighter version.

Frame Up, Battle of the Bands, Starbright Part 1: Falling Star, Last Resorts, Scandal, Britrock. 

Looks a bit different from the produced fashion; most obvious I think is the hairbow that Jem wore.  The tights and belt are a lot lighter, the shoes are red (not purple) and the necklace is a choker, not... whatever the heck the one that was made is supposed to be.  I'll forgive the lack of glasses because we can't really expect Jerrica to be wearing sunglasses all the time :)  At least once Jem is shown with a red anklet, I'm not sure if it was always drawn with this fashion or not.

Starbright Part 2: Colliding Stars, Broadway Magic, Mardi Gras, Beauty and the Rock Promoter. 

The Jem Model sheet number for this fashion is J-11.

Used with permission from Arashi842's Gallery.  See my old drawing.

This is a song-only fashion and does not likely have a regular model sheet number. 

Starbright Part 1: Falling Star, Starbright Part 3: Rising Star, In Stitches, The Princess and the Singer, Glitter and Gold, The Bands Break Up, KJem. 

Looks very different from the produced fashion (colour scheme, hat design). 

The Jem Model sheet number for this fashion is J-9.

This is a song-only fashion and does not likely have a regular model sheet number. 

This is a song-only fashion and does not likely have a regular model sheet number. 

This is a song-only fashion and does not likely have a regular model sheet number. 

I guessed at the skirt length and shoes.

Starbright Part 3: Rising Star, The World Hunger Shindig, Adventure in China, The Music Awards Part 1, Broadway Magic, In Search of the Stolen Album, The Princess and the Singer, The Jem Jam Part 1, Culture Clash, Glitter and Gold, One Jem Too Many, The Fan, The Treasure Hunt, Journey Through Time, Hollywood Jem Part 1. 

Revised from her older one

In Search of the Stolen Album. 

The World Hunger Shindig, The Music Awards Part 1, The Rock Fashion Book, Intrigue at the Indy 500, Roxy Rumbles, Britrock, Hollywood Jem Part 1. 

Occasionally one can see little dots around the edges of the boots, most often they are omitted from the drawings.

Variation: Looks quite different in the opening credits.
Variation: with gloves and a boa in The Bands Break Up. 
Variation: in pink/blue, shown on a poster in The Presidential Dilemma. 

Starbright Part 3: Rising Star, The Jem Jam Part 2. 

The Jem Model sheet number for this fashion is J-14.

Starbright Part 1: Falling Star, Broadway Magic, The Jazz Player, Rock 'N Roll Express. 

Replaces the first darker Jem's Trench coat.

It is not always seen with the beret.