Jewels has been called the first full-length abstract ballet. It can also be seen as three separate ballets, linked by their jewel-colored costumes. Balanchine commented: "The ballet had nothing to do with jewels. The dancers are just dressed like jewels." Each of the three acts features the music of a different composer: Emeralds is set to the music of Gabriel Fauré, Rubies to the music of Igor Stravinsky and Diamonds to music by Pyotr Ilyich Tchaikovsky.
The costumes were created by Balanchine's long-time collaborator Barbara Karinska who created a distinct look for each different act: romantic, calf-length tulle skirts for Emeralds, fabric that flared at the hips of both men and women in Rubies, and the flat, classical tutu of the Imperial Russian Ballet for Diamonds. The costumes were such finely crafted pieces of art in their own right that some of them have been exhibited in museums and in theater lobbies. Even Arpels was impressed with her attention to finding the finest trim that would accurately represent the true glitter of genuine gemstones. Additionally, Karinska's painstaking work is credited with making the costumes last despite the sweat and strain of dancing in them. Her designs, needlework and choice in fabrics made them both durable and danceable, illustrating that the bodies inside the costumes were deserving of her utmost respect. When questioned about her attention to her almost extravagant detail she replied, "I sew for girls and boys who make my costumes dance; their bodies deserve my clothes."
"It is open to doubt whether even George Balanchine has ever created a work in which the inspiration was so sustained, the invention so imaginative or the concept so magnificent as in the three-act ballet that had its world première at the New York State Theater last night." Clive Barnes