Arkansas quartz is some of the cleanest quartz in the world rewarded the grade of “AAA” gem quality. Quartz is a Mohs 7 hardness out of 10 that makes this a durable stone for jewelry. These are beautiful 5mm hexagon faceted stones set in a solid 14k yellow gold finger basket setting. This allows the brilliance of the stone to shine through and make these very durable. Dress up your look with a little piece of Arkansas.