251 ct Beginners Rough Opal with Video Tutorials advice-tools-merch The brightness is simplified into

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

Bright red colored semi black opal is nice for either a pendant or ring

This scale has been created with a durable plastic material and is compact to ensure you can take it anywhere

A top high gem black opal with a nice high dome and very bright colors

251 ct Beginners Rough Opal with Video Tutorials advice-tools-merch The brightness is simplified intoStart 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.