The new mom showed off some new bling after her singer husband debuted a “Papa Bear” mug

Hailey Bieber/ Instagram

Hailey and Justin Bieber

Hailey Bieber is showing off some new mom bling after welcoming her baby boy.

On Tuesday, Sept. 3, the Rhode founder, 27, shared a photo on her Instagram Stories as she displayed her new manicure. Alongside her newly painted brown nails, Bieber accessorized with a diamond and gold ring that read “Mom.”

Hailey recently welcomed her first baby, son Jack Blues, with husband Justin Bieber, 30, sharing the news in August on Instagram.

“WELCOME HOME JACK BLUES BIEBER 🐻,” Justin’s Instagram caption read alongside a photo of Hailey holding the newborn’s feet.

Also on Tuesday, Justin shared his first Instagram post since announcing the arrival of his son Jack Blues, highlighting his new dad-themed mug.

In one photo from the carousel, the musician showed off his coffee mug, which featured a cute cartoon bear wearing a bowtie and holding up a heart. “Papa Bear,” the mug read, with bear paw prints on either side of the new dad nickname.

On Aug. 26, a source exclusively told PEOPLE that Bieber is “already a great dad.”

“The pregnancy was something that they very much wished and prayed for. The day they found out that Hailey was pregnant, was the best ever for Justin,” the source said.

“He was over the moon with excitement. It was a big celebration for them,” the insider added.

The source also said the pair are “both overjoyed” after welcoming the little one, telling PEOPLE, “The baby is such a miracle. He’s adorable and doing well. Hailey’s doing well too.”

According to Vogue, the “Baby” singer even helped Hailey select a manicure for the social media post announcing the birth of their son Jack Blues.

“Justin has been choosing Hailey’s nail design lately and it was his request,” Hailey’s manicurist Zola Ganzorigt said, per the outlet.

The Rhode skincare founder’s nails were almond-shaped with a “more muted nudish, white micro French” manicure, Ganzorigt added.