Trillion Cut Tanzanite Blue Quartz Drop Earrings. These drop earrings are hand crafted with 925 Sterling Silver and Trillion Cut Tanzanite Blue Quartz Crystals. The faceted crystals are approximately 8mm wide. Overall length from top of earwire to bottom of crystal is approximately 1.75 inches. The earwires are 20 gauge Sterling Silver. Polishing cloth included. Shipped in gift box.