Racquel Cloutier, 31, of Laguna Niguel said she hid the ring in the watch box in her husband's closet to keep it safe from her 2-year-old twins while she was in the hospital giving birth to another child, ABC News reported Thursday.
Cloutier said she went looking for the ring when she returned home June 5 and was dismayed to learn her husband, Eric, had sold the seemingly empty watch box for $10 at a June 1 garage sale.
"I go into my husband's closet, can't find the box, and then he tells me he sold it. I said, 'You sold it? What do you mean you sold it?' I immediately started crying," Cloutier said.
"I'm very, very, very upset," she said. "I'm trying to remain optimistic but I don't know anymore. There's a small chance whoever bought the box doesn't know the ring is in there."
Cloutier said her husband described the buyer as a blonde woman.
She said her husband "feels really terrible" and they are hoping the ring will be returned.