Three solid opal set dress rings, all 9ct yellow gold, one of fine solitaire style, featuring a central solid black opal measuring 9.3 x 6 mm, claw set, strong green spectral colours in flashes throughout, the second set with a solid cabochon crystal opal with intense varied colours in a peaked profile ring, measuring 14.5 x 11.3 mm backed in a solid backing, claw set, framed by a random scattering of diamonds, the third ring also set with a solid boulder opal of strong colour measuring 14 x 10 mm, framed by fluted gold work, set to a plain band.