320ct Beginners Rough Opal with Video Tutorials Fabulous Finds It has one side of

It has one side of smaller green and orange pattern and on the other side it has broader pattern with even brighter orange and green

Gem round black opal with flagstone pattern

The black opal doublets are green blue

The brightness is simplified into 5 levels to support the measure of an opals brightness(B)

The black opal doublet exhibits a green broad flash

320ct Beginners Rough Opal with Video Tutorials Fabulous Finds It has one side ofStart here if you are new to opal cutting! Along with your rough opal, we will send you a series of video tutorials covering how to set up your equipment, how to get the more our of your parcel and most importantly a series of 4 lessons on how to cut. These videos are exclusive to our customers and are not available anywhere else. Each parcel is individual and you will get the exact opals in the images.