131 ct Beginners Rough Opal with Video Tutorials boulder-opal It also has a millimeter

It also has a millimeter measurement down the side to measure your opal when grading them

Current ring size is M1/2 (US Size 61/4)

Green and blue colors are the dominant features of this black opal

Cut a solid or carve it to your liking

This high domed gem light opal is perfect for a ring setting

131 ct Beginners Rough Opal with Video Tutorials boulder-opal It also has a millimeterStart 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.