momma gonna buy you a diamond ring lyrics

The lyrics you’re referencing are actually from a classic lullaby or nursery rhyme called “Hush Little Baby”. Here’s the relevant part:

• Hush little baby, don’t you cry,
• Mama’s gonna buy you a mockingbird.
• And if that mockingbird won’t sing,
• Mama’s gonna buy you a diamond ring.

This verse follows a repetitive pattern, offering different solutions to soothe a fussy baby. The “diamond ring” is just one of the many things mama promises to buy if the previous attempts (mockingbird, looking glass, etc.) fail to calm the child.