Lily-Rose Depp wears black Chanel Cat-Eye 5415 sunglasses in the HBO series The Idol and the music video Double Fantasy (The Weeknd ft. Future).

Lily-Rose Depp is a brand ambassador for Chanel and we can see the Chanel logo on the temples.

The Chanel Cat-Eye 5415 sunglasses cost around $350, but are currently not available anywhere, not even on eBay.
 

Alternative cat-eye sunglasss

You can find similar slim black oval cat-eye sunglasses on Amazon, which are also much more affordable than the original Chanel glasses.

One of the most similar-looking alternatives are the Dollger Cat-Eye sunglasses ($12):

Another sleek pair of black cat-eye sunglasses is the Miu Miu MU A06S, pictured below:

The Miu Miu is one of the best alternatives for the Chanel sunglasses. Get it at SunglassHut for $478.

Also from a designer brand are the Prada PR26ZS sunglasses, available at GlassesUSA for $398.

Another good alternative is the Le Specs Outta Love, as seen in the movie My Fault: London.

Get these Le Specs Outta Love on Amazon ($45)

Another more round-frame option suggested by fans are these French Connection Sylvia sunglasses:

Get the French Conection Sylvia on Amazon for $45.

Actress Lily-Rose Depp is the daughter of Johnny Depp and stars in The Idol together with singer/actor The Weeknd.

See more eyewear in The Idol.

Reference: Chanel Cat-Eye CH5415 A71340 X08101 S5343