Show you the poem named twin gems of Caribbean?

There's no widely recognized poem titled "Twin Gems of the Caribbean." It's likely a phrase used to describe two Caribbean islands, but it's not the title of a specific poem.

Perhaps you're thinking of a different poem or phrase? Could you provide more information about the poem you're looking for?

For example, you could tell me:

* The specific islands it might be referring to (e.g., Cuba and Haiti)

* The author of the poem, if you know it

* Any lines or phrases you remember from the poem

* The context in which you encountered the phrase "Twin Gems of the Caribbean"

With more information, I might be able to help you find the poem you're looking for.