These earrings contain natural Colombian Emerald gemstones measuring 4x5mm, and high quality cubic zirconia's. These earrings are 925 sterling silver and platinum plated, also available in gold or rose gold color. Upon purchasing, please include your choice of metal color within your order notes. This item includes a gift box and a certificate of authenticity with purchase. This item is made to order, please allow 10-15 days for processing and delivery.