I was considering what a fully grown Gemling might look like, whether or not they would be carbon copies of one parent, a mix of the two, or even bare more similarities to their fusion form. What resulted was the charming thought of giving them traits thematically connected to the fusion while remaining recognizably a combination of the parents... Especially since there's no canon fusion between Jasper and Peridot yet, and I've seen so many designs I've really loved.

So here is the first of many, the fully-grown runt "Peritot" as an adult, in both Small and Large sized. Since she's a runt I figured she'd only get about as big as Ruby or Sapphire, But the design was so appealing in full-size that I couldn't help myself. Her stone is Dravite, and she's themed after TheSketcherLass's handsome genius terminator fusion Dravite, since I figured the Peridot-controlled fusion would be perfect for a gemling with Peridot's cool genius and Jasper's ferocity.

Design sketches and more info here