The reality TV personality confirmed on Wednesday (March 7) that she is pregnant and getting married to boyfriend Jionni LaValle, ending months of speculation.
It has since been revealed that the five-carat diamond ring Polizzi was first seen sporting earlier this week was designed by LaValle, based on Polizzi's hints during a jewellery store trip.
"He wanted the very best for his honey," Ben Bekdas of B&B Jewellery in New Jersey told E!. "Snooki was here a few months ago to pick up a birthday present from her father.
"She was dropping hints to Jionni and tried a couple of rings on. She picked out three different styles of rings. She liked the top of one and the side of another."
He added that LaValle picked up the finished ring one month ago and proposed to Polizzi soon after at a hotel in the state.
"Jionni got down on one knee on the balcony," the jeweller revealed. "Snooki had no idea that she was getting an engagement ring."
Bekdas added that the couple are pushing ahead with planning their nuptials and will "come in soon" to look at wedding bands.
Polizzi's announcement was somewhat marred by her ex-boyfriend Emilio Masella telling the press that he "hope[s] she has a miscarriage".
Masella later clarified and defended his comments, before saying that he welcomed a rumoured defamation lawsuit from his former partner.
> 'Jersey Shore's Snooki, fiancé Jionni LaValle nickname unborn baby