Bidspirit auction | 18KWG 59.85ct Boulder Opal Pendant

18KWG 59.85ct Boulder Opal Pendant - Center stone Freeform boulder opal, 59.85 ct (in matrix) displaying bright blue-green flash with brown ironstone patterning Metal Solid 18 K white gold body and wire overlay (hallmarked) Mount Bezel-wrapped with asymmetric Art-Deco–inspired fin accents; double-pin stem and safety clasp Dimensions Approx. 46 × 24 mm (opal 39 × 20 mm) Total weight 21.1 g Substantial boulder opal slice with vivid play-of-color and natural matrix veins, framed in sculptural white gold. Pin mechanism functions smoothly; minor surface wear but no structural issues. A striking statement brooch or convertible pendant centerpiece.