Van Cleef & Arpels Vintage Alhambra bracelet blue agate 5 motifs 18k yellow gold VCARP34900 The blue agate, which first appeared in the 1989 collection, is returning in this year’s Vintage Alhambra necklace and bracelet, gracefully embellished in yellow gold to achieve this subtle radiance and soft blue glow. The pieces are celebrated in the second edition of Journey of …