A pair of diamond and ruby earrings by Roberto coin Cento, from the 'O' collection, each earring comprising an open circlet pave set with round brilliant cut diamonds, centred with two bezel set round brilliant cut diamonds, detailed to the reverse with a single hammer set ruby, to clip fittings, signed and numbered 026149 and 026138, in 18ct white gold. Pave set diamonds total 0.58cts, bezel set diamonds total 0.46cts