A larger, statement-making version of the best-selling Signature Midi Knockout Studs , the Signature Large Knockout Studs feature multi-faceted, brilliant-cut gemstones that make an impact for both day and night. Gemstone: Crystal Quartz (Semi-Precious). Our semi-precious gemstones are rare, ethically sourced and hand cut from naturally occurring materials, giving each individual stone its own unique colour. Note: stone colour per piece may vary. Gemstone Diameter: 10mm
