4.30 ct. Oregon Blue Opal
- Color: Medium Grayish-Blue
- Clarity: Opaque
- Origin: Oregon
- Cut: Cushion
- Treatments: None
- Measurements: 10.8 x 11.2 mm
Well polished and of a nice useable size, this an affordable and fairly distinctive US gem material. The unusual gray-blue hue is not common in opal from other areas is nicely consistent here - it is reminiscent of a nice blue chalcedony. Lovely stone with a fine luster and polish.