IMPORTANT NOTE. 
This method is ONLY for Nomad. This does NOT apply to other render engines. Nomad is kind of different.
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If you can explain more about what exactly are you going to do with this, I maybe can help you.
I am a new Nomad user, but I know about rendering.
I reduce the size of the inside sphere so you understand what is going on with the gelly outside object.
TIPS:
1- Do not just pull the environment image value like 100. Leave always as much as low as you can.
First create some lights.
- Nomad is a bit different when it comes to rendering.
2- Place different lights in different positions. And see first what you like the most.
3- First look for colors that match what you are looking for.
4- Do NOT push the gelly material now. Look first for colors.
5- When the light and the colors are there, start to make your material. Your material properties in this case is the gelly looking.
6- So first colors and lighting, then after material properties. Itis important that you first do the material reflections, then refractions and then the effect and look you are trying to get.
7- Now, play with the environment image intensity and now you can go more aggressive with the values until you find your lighitng.
8- Another IMPORTANT point. Play with the environment images after you almost finish. They will give you the COMPLETELY LIGHTING and maybe you will prefer another environment image.
9- WHAT I DID at then after I got the looking I wanted, then I adjust the glossy and the roughness → SPECIALLY the interior which gives methe gelly looking as below.
10- After you have done all start to change the lights ONLY! See the very last image to this message
AH! And change the background so you understand what is happening!
I NEVER EVER use white! At least white confuse me a LOT to do my materials!
Enjo it!
NOTE: In my opinion the outside of the jelly looks too bright. That is the reason I do NOT like to push to high the values of the enviroment image!
This is the image yous hould look at at the end.
ATTENTION!
As I mention I never use white as a background, because you will get another undesirable results.
As you can see the white outside of the material and the lights surrounding the object get lost.
And this is the final result!
I hope I was able to help you!
CHEERS!