Friendship, love and loyalty are represented by this historic celtic design. A Smoky Quartz claddagh ring with your birthstone or favorite color makes it even more significant. Brown gemstones are gaining in popularity and smoky quartz is an affordable choice. A smoky quartz ring goes well with autumn colors and evening wear. Brown gemstones are gaining in popularity and smoky quartz is an affordable choice. A smoky quartz ring goes well with autumn colors and evening wear.