14k Gold Akoya Cultured AA-Quality Pearl-and-Diamond Earrings (6mm) High luster with minimal blemishes. The natural properties and process of pearl formation define the unique beauty of each pearl. The image may show slight differences in texture, color, size and shape. AA Quality Cultured Akoya Pearls. Assembled and Quality Controlled in the USA. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.