9ct gold, opal, sapphire and diamond hand made brooch in 9ct (tests as) set with a single solitaire black opal approx 23.3 mm x 23.5 mm x 7.3 mm cut cabochon. Colours include: green, yellow, orange and some red. sapphire approx 3.2 mm-3.4 mm round brilliant cuts. Diamond total weight 0.08ct, colour G, clarity Vs. With lockable clasps. total weight 17.9 grams.