Catherine debuted Monica Vinader Siren Earrings in 2016 during day four of Rayal Tour Canada. These simple, sophisticated earrings are great for everyday wear. The organic, irregular shaped multi-faceted Green Onyx gemstone is encased in 18ct Gold Plated Vermeil on Sterling Silver. The gemstone in these earring measures approximately 12mm x 10mm. Sourced in India, Green Onyx is a Chalcedony gemstone enhanced with dyes to give it its vivid emerald green colour. This translucent stone is associated with the Gemini Zodiac sign and represents ‘protection’. The earrings are currently retailing for $195 (including taxes) on official store and for $145 (Excluding taxes) on Selfridges.