Vintage Emerald Stud Earrings, Colombian Emerald High Court Stud Earrings Gold. These earrings contain natural Colombian Emerald Gemstones measuring 4mm x 6mm, and high quality cubic zirconia's. These earrings are solid 925 sterling silver and gold in color. This item includes a velvet gift box and a certificate of authenticity with purchase. This item is made to order, please allow up to 15-20 days for processing and delivery.