Blanca Miró x Larkspur & Hawk The timeless rivière takes on a playful new spirit in this colorful collaboration with Blanca Miró. Forty-five rose-cut white quartz stones, each set in a Georgian-inspired collet setting, create a luminous river of color around the neck. Alternating foils in Scarlet, Indigo, Zest, and Verbena lend a vibrant rhythm to this enduring silhouette, designed to be worn alone or layered with other favorites.