Just some details about Ariana Grande's giant engagement ring.

Ariana Grande‘s left arm is going to be seriously ripped in a few months time, as the newly engaged singer is now carrying around a whopping 3.03 carat rock.

The 24-year-old American is due to wed Saturday Night Live castmember Pete Davidson, who – according to TMZ – picked up the custom-made, platinum-set piece last month for roughly the equivalent of AUD$122,900.

Not bad for a 24-year-old comedian.

The rock spotted on Ariana's hand on June 2 at iHeartRadio’s Wango Tango concert. Image: Getty.

TMZ reported that the VVS1 pear-shaped diamond ring was commissioned by Manhatten jeweller Greg Yuna, who also goes by the name 'Mr. Flawless'.

Yuna, who also counts 50 Cent and Drake among his clients, appeared to confirm the report by posting about Grande's ring on his Instagram story on Wednesday.

While the jeweller told The New York Post in 2015 that he doesn't like "gaudy", he added, “I don’t skimp out. I handpick the stones. I know what it costs to do something right.”

The rock. Image: Getty.

Grande's ring was first spotted on her finger on June 2 when she performed at iHeartRadio’s Wango Tango concert in Los Angeles. But it wasn't until Monday that the pair confirmed their impending nuptials.

The news came as a shock to many, given the couple had only been dating for a few weeks.

Both Davidson and Grande are also not long clear of previous long-term relationships. The singer split with rapper Mac Miller in May, the same month her new fiance called it quits with actor Cazzie David.

The newly single David posted to Instagram from South Africa's Franschhoek Wine Valley after news of the engagement broke, writing: "Came to wine country a person, leaving a human bottle of wine."

the chamber of secrets has been opened ...

A post shared by Pete Davidson (@petedavidson) on