Petit Gateau Stackable Ring — Swirl & Pavé Duo

Navy enamel and cubic zirconia share the billing in this 18k gold-plated stackable ring from Petit Gateau. The deep blue is hand-poured enamel, never printed, and the stones add a fine line of light along the band.

Its brass base wears an 18k gold finish, with sizes 6 through 9 available and a nickel- and lead-free build. Slightly wider than a plain band, it anchors a stack beautifully: set it between thinner gold rings, or let the navy stand alone against bare hands.