Gioielliama sensational amethyst and diamond dress ring, Italy, centring a collet-set circular cabochon amethyst measuring approximately 22 mm, framed by a halo of pave-set brilliant-cut diamonds, the small diamonds together weighing approximately 0.40 carats, the reverse decorated with fine openwork architectural motifs, mounted in 18ct gold, gross weight approximately 25 grams, size P, signed Gioielliama.