No mark but testes to be 14k. It is about 1 diameter, no seed pearl missing. The item "Antique Victorian 14k Yellow Gold Mourning Locket Seed Pearl" is in sale since Saturday, September 26, 2020. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Fine\Victorian, Edwardian 1837-1910\Mourning Jewelry".The seller is "onlinesis" and is located in Huntington Beach, California. This item can be shipped to United States.