Gemstone: 2.72 ct Opal (Welo, Ethiopia) 13.3 x 9 x 5.5 mm, Untreated Metal: 1.36 g of Sterling Silver (Bail + Chain) Chain: 45cm Total weight: 1.91 g Our Commitments Quality Assurance: The authenticity and quality of our jewelry are guaranteed and every purchase is accompanied by a corresponding warranty card. Should any concern arise, it will be addressed promptly and transparently. Gemstones: Our gemstones are sourced from trusted suppliers, and, when appropriate, examined in our in-house laboratory. Packaging: Our jewelry is presented in high quality packaging — ideal to elevate every gifting or self-indulging experience. Shipping: Parcels are promptly sent via registered air mail with tracking. Higher-value items include insurance coverage.