- Pastel-pink geode formations with quartz crystal interiors; yellow sapphires, total weight: 0.72-carats - Butterfly fastening for pierced ears - This piece is handmade and as such may have some small flecks or scratches - This piece has been certified in accordance with the Hallmarking Act 1973 - NET-A-PORTER is a certified member of the Responsible Jewellery Council