Metal: 925 sterling silver Centre stone: One 7mm × 9mm oval-cut natural emerald, weighing approximately 2.5 carats This item includes the exquisite leather jewellery box shown in the photograph. Natural emeralds are typically treated with colourless oil to enhance their clarity. Shipping: We deliver via UPS, Royal Mail, DPD, and other logistics providers. Delivery times depend on your local postal system, but most orders within Europe arrive within 5 to 7 business days.