Opal and sapphire pendant necklace in the Arts and Crafts manner, openwork sinuous design, the pendant set with ten oval cabochon cut white opals, displaying violet, indigo, blue, yellow, green and orange play-of-colour, the two principal opals measuring approx 11mm x 6mm and 13mm x 5.5mm, ten oval and cushion cut blue sapphires, the integral chain set with six oval cabochon cut white opals, displaying violet, indigo, blue and green play-of-colour, the tongue and box clasp set white opal displaying violet indigo and blue play-of-colour, rubover millegrain settings, knife edge mount, unmarked yellow metal, assessed as gold, length of chain 39cm approx, length of pendant 6.5cm approx, 5.4g gross approx