YouTube has come up with a new way for creators to earn. During vertical live streams, viewers can now gift hosts with “Jewels,” a form of digital currency available for purchase. The gifts appear onscreen as animations during vertical live streams, but are a cash equivalent for creators. The initial denomination, “Rubies,” equal one cent per stone, or about $1 per 100 Rubies. The new feature is rolling out to eligible creators in the U.S. who are currently enrolled in the YouTube Partner Program (YPP) and have accepted the Virtual Items Module in YouTube Studio.

That means only U.S. viewers are currently eligible to purchase Jewels and send gifts, and only through the YouTube mobile app, though participating creators will be able to receive the gifts no matter what platform they’re on, directly on YouTube or with third-party streaming software.

“If this sounds familiar, it’s because it’s similar to TikTok’s live gifting feature that lets viewers purchase ‘coins’ to send gifts, of various monetary value, to support live creators during their streams,” TechCrunch writes, noting that while “YouTube has allowed viewers to support live-streamers through ‘Super Stickers’ in the Chat tab, this new feature is a direct response to the popularity of gifts on TikTok Lives.”

Although Rubies have a designated value, “YouTube says there’s no fixed revenue share since the cost of Jewels can change based on promotions, so the amount of Rubies earned can vary,” The Verge explains.

As part of the Jewels launch, YouTube is offering “limited-time bonuses” designed to jump start the effort. “For the next 3 months, qualified, eligible creators can receive a 50 percent bonus on gifts earnings (up to $1,000 per month!) in addition to your standard earnings from Rubies,” according to a Help Center post.

YouTube is also dabbling in another new feature, along the lines of “TikTok’s endless video feed with a new swipe gesture on long-form videos,” The Verge reports.

YouTube announced Jewels in September at its “Made On” event, and has since then “been working on the back end processes to ensure a smooth roll-out,” explains Social Media Today.