781674 The Rosebery Tiara, c.1878 (pearls & diamonds) by English School, (19th century); inner circumference: 29.7 cm; Private Collection; (add.info.: An historic tiara, designed as a series of six bouton-shaped natural pearls and old-cut diamond clusters, interspersed by diamond florettes to the seven detachable graduated drop-shaped natural pearl and diamond surmounts converts to form six brooches); Photo 穢 Christie\'s Images; English, out of copyright.