18ct ring in yellow gold with a 14mm x14mm cabochon chalcedony in a 4 x claw setting. Chalcedony is a cryptocrystalline quartz of which onyx and carnelian are also from this group. It is a very pretty purple blue colour and is slightly translucent. Quartz is around 7 on the Mohs hardness scale which is roughly the same hardness as glass for a reference. The band is a 3.5mm rounded band.
Weighs: 10.85 grams