This boulder opal looks like a window with an ocean view. A very significant piece, it's about 2.5 square. I have blogged in the past about the rough that Bill Kasso got that was full stripes of color, this is one of them. I accented it with rough aquamarine, spessarite garnet, peridot, orange sapphire, topaz and blue zircon. It hangs from luscious tanzanite beads and an orange sapphire 18k gold chain.