At 24 carats, this high-quality black opal will make an impressive centerpiece for a jewelry design. Courtesy Cody Opal
Boulder opals are opaque, giving them a mysterious look that’s ideal for designer jewelry pieces. Courtesy Cody Opal
Crystal opal can have intense play-of-color in a harlequin pattern.
These light-colored opal beads are milky in appearance and have numerous dead spots with no play-of-color. Courtesy Cody Opal
The harlequin pattern in this black opal has a lot of red, blue, and green play-of-color. Photo: Rudy Weber. Courtesy Cody Opal
This black opal has a lot of red play-of-color, which is considered highly desirable. Courtesy Mariora, Surfer’s Paradise, Australia
This large Australian light opal cabochon weighs 117.85 carats. Small play-of-color flashes of orange and green predominate in a pinfire pattern, with spots of a more muted blue over a grayish bodycolor.
In a close-up view, you can see the details of a black opal’s near-perfect harlequin pattern. Courtesy Cody Opal
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