Toni Braxton is searching for her engagement ring.

The singer, 51, who is engaged to rapper Birdman, revealed she lost her halo-style, cushion-cut yellow diamond sparkler — along with other jewelry — in a piece of Louis Vuitton luggage that she left on an airplane.

In a tweet, Braxton reached out to Delta Airlines in hopes of retrieving her beloved ring.

“Hey Delta I left my LV train case on my flight from JFK to LAX on Tuesday, she tweeted Monday. “It’s been impossible to get any type of assistance from anyone in the company! Can someone let Delta know I’m trying to get in contact with them?”

RELATED: Toni Braxton And Her Sisters Star In Her ‘Long As I Live’ Music Video

She added, “I’ve tried to no avail… please help you’re my favourite airline.”

But the next day, even though Delta found the case, the jewelry inside is still missing.

“Hey everyone, Delta located my LV Train Case! Yay! Unfortunately, most of my jewelry items are missing… including MY ENGAGEMENT RING,” she wrote the following day. “Whoever borrowed it… please return it! I promise, no questions asked!”

RELATED: Toni Braxton Confirms Her Engagement To Birdman, Shows Off Her Massive New Ring

In an Instagram post, Braxton reminisced about having her ring a.k.a. “Bonnie,” “Feeling back to my old self again, yay! But I’m sad today… my engagement ring is missing… but I’m optimistic that someone will find Bonnie and return her home.”

Braxton and Birdman have been engaged since early 2018.

Click to View Gallery
Stars In Love