Boulder Opal Freeform Cabochon, Australia 3.76 cts., 13.03 mm x 7.54 mm x 4.62 mm   Here is a beautiful Boulder opal cabochon. It has a freeform shape and polish. Beautiful color play all around. There is a single pit on one side edge, but won't be seen once mounted. Some fill these in before polishing, but then I could not say they were 100% natural! The bottom… More info

Boulder Opal Freeform Cabochon, Australia 6.45 cts., 13.90 mm x 9.28 mm x 5.88 mm   Here is a beautiful Boulder opal cabochon. The shape is freeform. Beautiful color play all around, mostly blues and greens. As with many of these natural polished pieces, there is some slight pitting. The magnified photos make them look larger than they are.  Some fill thes… More info

Boulder Opal Freeform Cabochon, Australia 8.51 cts., 12.75 mm x 11.85 mm x 6.78 mm   Here is a beautiful Boulder opal cabochon. Although it looks round or slightly oval, the shape is more freeform. Beautiful color play all around. As with many of these natural polished pieces, there is some slight pitting. Some fill these in before polishing, but then it would not … More info

Boulder Opal Freeform Cabochon, Australia 8.99 cts., 14.34 mm x 12.80 mm x 5.88 mm   Here is a beautiful Boulder opal cabochon. Although it looks oval, the shape is more freeform. Beautiful color play all around, mostly blues and greens. As with many of these natural polished pieces, there is some slight pitting. The magnified photos make them look larger than they … More info

Boulder Opal Freeform Cabochon, Australia 9.21 cts., 13.70 mm x 11.58 mm x 6.50 mm   Here is a beautiful Boulder opal cabochon. The shape is freeform. Beautiful color play all around, mostly blues and greens. As with many of these natural polished pieces, there is some slight pitting. The magnified photos make them look larger than they are.  Some fill the… More info