Australian Boulder Opal Pendant, Freeform, 925 Silver, p4Australian Boulder Opal Pendant, 925 Silver The beautiful Boulder Opals were hand cut and polished by Paul himself because prices are once again increasing. The rich mahogany matrix is a perfect backdrop for the translucent veins of Opalite which do contain the colours typical of precious Opal but here they are more subdued. The well made Bezel setting in 925 Sterling Silver also has an open back. Like all Boulder Opals there's a stable balance