Here is one of the greatest full-length ballets of all time, and it doesn’t tell one story but many. George Balanchine’s Jewels, choreographed in 1967, has three acts—”Emeralds,” “Rubies,” and “Diamonds”—that provide three takes on classical style, respectively French, American, and Russian. But more than that, it’s a tapestry interwoven with allusions to ballet’s ondines, firebirds, swans, and steeds. In “Diamonds” there’s even a unicorn, but you must have eyes to see it. (Balanchine loved the Cluny tapestries in Paris and was familiar with the Unicorn Tapestries at the Met Cloisters, in upper Manhattan.) A glittering bestiary of romantic love, Jewels is a crowning achievement for the ballet company that performs it. The gems are the ballerinas. —Laura Jacobs