Reality-TV star Rob Kardashian and urban model Blac Chyna are engaged.

Chyna, born Angela Renee White, posted an Instagram image Tuesday of Kardashian and herself, showing an engagement ring on her finger. “YES !...!...!” she captioned the photo. About two hours later, Kardashian, 29, part of E!’s “Keeping Up With the Kardashians” reality-show clan, placed on his own Instagram account a photo of Chyna with the same ring and holding a huge wad of cash, topped by a one-dollar bill.

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Hours later, Chyna posted a video with a close-up of a black-gloved hand displaying the ring, and wrote, “I’m so blessed and honored to have good man in my life, I love you Rob Kardashian!” She indicated in hashtag appendices that the ring was 7 carats and came from Los Angeles jewelry designer Ben Baller.

GossipCop.com said Kardashian proposed Monday night in Los Angeles. TMZ.com added that Kardashian paid $325,000 for the ring.

Kardashian — brother of Kim, Khloé and Kourtney Kardashian and half-brother of Kendall and Kylie Jenner — reportedly began dating Chyna in January. On Jan. 25 she posted a black-and-white Instagram image of herself being held by an arm with tattoos resembling those of Kardashian. “The beginning,” she captioned the since-deleted photo.

The relationship caused social-media controversy since Chyna’s former boyfriend, rapper Tyga, with whom she has a 3-year-old son, King Cairo Stevenson, left her in 2014 for then-17-year-old Kylie Jenner.