McDonald’s encourages people to “Make this Valentine’s Day unforgettable” in its latest commercial, introducing the Bling Mac, the $12.500 diamond-encrusted ring offered as prize for the fan who tweets @McDonalds with the “most creative, fun vows of Big Mac love” in the #BlingMacContest.

The spot showcases the Bling Mac, which is “specifically designed to show just how big your Big Mac love is”, and explains what you have to do for a chance to win it. “Just tweet @McDonalds with #BlingMacContest pledging your love to your favorite Big Mac burgers.”, the voiceover says, adding that, “for one lucky person, will put a ring on it”.

The Bling Mac features champagne diamonds as two all-beef patties, orange sapphires as special sauce, and other 18K gold diamonds and sapphires as lettuce, cheese, pickles, onions, and a sesame seed bun. “It’s so craveable and delicious you could practically taste it.”, the voiceover also says, but viewers are obviously advised not to eat it.

The commercial ends with the voiceover urging viewers to celebrate, this Valentine’s Day, the three Big Mac sizes with seven tears of bling, and mentioning that the single “most meaningful, unique and hilarious vows” will win the Bling Mac.

The Bling Mac Contest ends February 14, 2018, at 11:59:59pm ET. No purchase is necessary.