Bronze 3D Unicorn Charm. The whimsy of unicorns dates back to pre-biblical times. Unicorns are proud creatures whose horn is harder than diamonds, and whose tears heal both physical wounds and sorrows of the heart. Add some magic to your jewelry with this fun unicorn charm! Find more in our fantasia collection! Length measurement includes the 5 mm soldered jump ring. Our bronze is imported from Italy and is a high quality alloy of copper and tin. Our Thai bronze has an anti-tarnish compound mixed into the metal alloy that will delay but not eliminate eventual oxidation. Find more details and care instructions in FAQs.