On the verge of striking it rich an intergalactic diamond huntress is summoned to earth for compulsory breeding, but she is kidnapped by a ruthless space pirate en-route and must fight for her freedom to make it home before she is sentenced to death.

In order to make her goal clearer - what exactly is 'home'? Where, if she was kidnapped simply 'en-route' to Earth, will she be safe from the kidnappers? Sounds like an exciting story otherwise, good work!

"Breed or Die"

Why is she being sentenced to death?

I think cleaning this logline up would help greatly. Something like "An intergalactic diamond huntress kidnapped by a ruthless space pirate en-route to Earth, must fight for her freedom in order to make it home before she is sentenced to death."

It's not perfect, but is punchier, in my opinion.