Handcrafted with lampwork glass by Spanish artisans. Hoops: 18K gold plated nickel free hoops. 1.5mm thick and 7.5mm outer diameter. Heart charm size: 1.3cm width and 1.9cm height including the gold pin (not the hoop) SOLD AS SINGLE earring. The Zero Waste Collection is a sustainable jewellery option. The concept was curated after our glassmakers found they had multiple coloured glass rods left over which were too short to create new beads. We had the idea to break them and incorporate them into a new design to eliminate and use up the "waste", creating the Zero Waste Collection.