Antique rings set with macrocrystalline quartz varieties — rock crystal (colourless), citrine (yellow to golden-brown), smoky quartz (translucent brown), and cairngorm (the dark smoky quartz used in Scottish jewellery). Quartz sits at Mohs 7, making it durable for daily ring wear, and its abundance in nature meant it was widely available to Georgian and Victorian jewellers at a range of price points.
Rock crystal — perfectly colourless quartz — appears in Georgian rings as a transparent cover over hairwork, miniatures, and memorial compositions in mourning and sentimental pieces. Stuart crystal rings use faceted rock crystal over gold wire ciphers, and the material serves as a protective window in some of the oldest surviving British ring types. Citrine was frequently sold as Scottish topaz or golden topaz in the nineteenth century, though it is a quartz and significantly lighter in specific gravity than true topaz. Cairngorm features prominently in Scottish jewellery alongside silver and agate.
Quartz varieties are faceted, cabochon-cut, or used as flat panels depending on the specific type and application. Georgian and Victorian examples appear in claw and bezel settings in 18ct and 15ct gold. The quartz family also includes the chalcedony group — onyx, agate, and bloodstone — each with its own collection. For more on gemstones, browse our gemstone guides.