That reddish color argues against Black Knight, as do the bulbils and bracts on the flower stalk (if that's what I'm seeing on those vertical stalks).
There are two black Echeverias in the ballpark, Black Prince and Black Knight, neither of which is a good match (that reddish color). Black Knight is selection of E. affinis, which has really puny and insubstantial bracts on its inflorescence:
In contrast, Black Prince is a hybrid with shaviana, and it has much meatier bracts and flowers:
But neither is a good match for the plant in the OP, though this is definitely the season for flowering among the black Echeverias. The leaf shape is also a mismatch.