Marquise Opal Triplet Cabochon Select Size:8x4mm Shank Diameter 1/4" (6

Shank Diameter 1/4" (6

FCT foot-operated speed control for precise variable RPM

3mm height

co-founder of Glendo GRS

This key does not work with GRS Microblocks

Marquise Opal Triplet Cabochon Select Size:8x4mm Shank Diameter 1/4" (6Opal is the world's most popular phenomenal gemstone, with many cultures believing that opals have supernatural origins and power. These Marquise Opal Triplet Cabochons are crafted by bonding a piece of genuine opal to a black agate backing, then capping it with a colorless glass top. This triplet construction enhances the stability and protection of the opal while increasing the contrast of the play of color displayed making each stone more vivid and