Faceted Marquise Sunstone Select Size:8x4mm 77B-014 Cup Burs 1

77B-014 Cup Burs 1

actual weights will vary with stone material and cutting style

Ideal for precision applications including stone setting

Slide the spring onto the blunt end of the stem now inside the barrel

Faceted Marquise Sunstone Select Size:8x4mm 77B-014 Cup Burs 1Oregon Sunstone is a natural, all American gem, sourced exclusively from mines in the state of Oregon and receiving no treatment of any kind. A member of the Feldspar mineral group, Oregon Sunstone is prized for its lively, sparkling luster caused by flat, reflective copper inclusions contained within the stone. This optical phenomenon known as aventurescence and often referred to as Schiller gives each stone a distinctive, glittering brilliance