A semi black crystal opal ring and pendant, 9ct yellow gold, the ring presented with central solid oval semi black crystal opal measuring 18.8 x 14.2 mm, bezel set in a fine surround, set to a smooth band, strong electric blue and violet tones throughout, the pendant of Baroque triangular form, measuring 23 x 11.5 mm, deeper tones of similar colour, bezel set in a closed backing, fitted with bail.