7.03ct Quilpie Boulder Opal | #E261D Opal Jewelry Boulder opal is known to

Boulder opal is known to be one of the most durable opal varieties

shifts from orangish yellow to red orange in sunlight

given its strong ironstone matrix

The table and upper bezel facets are abraded

and emeralds

7.03ct Quilpie Boulder Opal | #E261D Opal Jewelry Boulder opal is known toWeight 7. 03 carats Origin Quilpie Region, Queensland, Australia Shape Oval Cabochon Dimensions (millimeters) 13. 66mm x 11. 92mm x 5. 09mm thick Dimensions (inches) 0. 54" x 0. 47" x 0. 20" thick Body Tone (+N1 to N9 ) N A Boulder Opal Brightness ( 1 to 5+) B2. 50 Predominant Colors Green and Yellow overtones with faint Blue Orange undertones Directionality of Fire Somewhat Directional Treatments Enhancements None Suggested Purpose Ring Pendant