DWTS' Cheryl Burke: Chad's Diamond Ring Gift "Improved" Our Scores

Diamonds are a girl's best friend -- especially on the dance floor.

Last week, football great Chad Ochocinco surprised his Dancing with the Stars partner Cheryl Burke with some serious bling: an enormous platinum ring with diamonds which costs more than $10,000.

"It was a little gift showing his appreciation," Burke told UsMagazine.com at Monday's "An Evening with Mark Ballas" event at L.A. club The Mint.

“I was speechless," Burke admitted of receiving the bauble. "I didn’t know what this was for and what it meant but I guess it’s his amazing way of saying thank you.”

And the ring keeps on giving: "It’s our lucky charm, because he gave it to me and our scores improved!” On Monday, the pair did the rumba to Alicia Keys' "Try Sleeping with a Broken Heart," earning 44 points out of 60, landing them in fourth place.

"He has done an amazing job!" Burke gushed. The Bengals player has been open about his crush on Burke. "It's very flattering to know," she told Us. "We have really great chemistry."