This Valentine’s Day, McDonald’s is celebrating by giving people more Mac to love with Grand Big Mac, Big Mac, and Mac Jr.

The three Mac sandwich sizes, all made with 100 percent pure beef, are at participating restaurants nationwide now for a limited time.

This year, love for the Big Mac is also immortalized in diamonds. The Bling Mac is an 18K gold, stackable ring with seven individual tiers of diamonds and gems representing the ingredients of the Big Mac, like orange sapphires as the Special Sauce. The ring is valued at $10,000. Check out the video here.

One dedicated fan will have the chance to win this unique piece created by fine-jewelry designer Nadine Goshn, Here’s how to win:

Profess your love to Mac sandwiches on Twitter by writing vows beginning February 7 through February 14

Use #BlingMacContest and tag @McDonalds

The Bling Mac will be awarded to the most witty, comedic and romantic tweet