Smoky Quartz Cluster on 3 Rings are 18K gold earrings with faceted smoky quartz and semiprecious bead clusters (sapphire, apatite, etc.). These fun dangles are worn on our hinged hoops.The dangles are designed to be worn on Dora Winchester Hinged Hoops, but if you're adding to your dangle collection, the dangles can be purchased without the hoops. The standard size of Dora Winchester Hinged Hoops is 10mm, but let us know if you'd like a custom size.