Small Round Blue Synthetic Opal Silver Earrings Vintage Antique Style Stering Silver 925 Post Studs (E23674) Part Size : 6 x 6 mm. / Opal: Stone size : 3 mm x 3 mm. Material - genuine 925 sterling silver. Nickel and Lead free. Conform to International, European an American legislation regarding lead, nickel and heavy metal content. Finishing: Oxidized + E-coat Gift Box available You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!