You dug your own grave. You thought it was a good idea to make over 80 gems. 

Now watch, half of them won't even be used. 

Also if anyone can guess some of the new ones they can insert a character of there choice that won't be cut. 

Confirmed Gems that won't be cut due to having story importance 

The four Diamonds

Their Pearls (Matte Green, Fire Opal, Chocolate and Nigh Blue)

Obsidian

Snow

Moon

Sun

The Diamond's 'siblings' (Purple Spinel, Red Spinel, Champagne Citrine, White Spinel, Gold Sapphire and Pink Tourmaline)

If anyone wants to contribute by helping with designs that be fantastic.