Bidspirit auction | 18K Yellow Gold Boulder Opal

18K Yellow Gold Boulder Opal and Diamond Pendant - This 18 karat yellow gold pendant features a central 5.02 carat freeform-shaped boulder opal. The opal is bezel-set and displays a multi-color play-of-color with flashes of green, red, orange, and blue. The reverse side of the stone shows a natural dark ironstone matrix. The opal is framed by an openwork yellow gold setting designed with a swirling, organic ribbon motif. The pendant is accented by fifteen round brilliant-cut diamonds with a total weight of 0.16 carats. These diamonds are distributed across the tapered fixed bail, at points around the frame, and in a graduated channel-set row on the right side. The reverse of the setting features a gold plate stamped with the hallmarks 18ik, 5.02, and 0.16. Length: 3.5 cm Width: 2 cm. 8.1 grams