Dating from circa 1903-1905, this ring by the Art Nouveau jeweler Ren?? Lalique is composed of enamel, pearl, and diamonds. It is designed as two opposed leaves of pale green plique-??-jour enamel on curving green enamel vines, and trailing old mine-cut diamond buds with black enamel tips, all framing a natural white button pearl, completed by an enamel vine in shades of green serving as the shank. Twining around the finger in the manner of ivy itself, and conveying the translucency of leaves in sunlight, this delicate jewel expresses both the tenacity and fragility of plant life.