Freshwater Oval Cultured Pearl Oyster Vacuum Pack 6-7mm 50pcs (White, Pink, Lavender, Dyed Black) Our freshwater cultured rice pearl oyster is directly cultured from our own cultured pearl farms. Each oyster has a cultured pearl. Shape: Oval Size: 6-7mm Every cultured pearl oyster is packed in individual vacuum bag. It is a wonderful gift for Valentine day, Mothers Day, Christmas, Wedding, Anniversary, Graduation, Birthday, Bridesmaids, Prom and Formal Events. Shipment: UPS Delivery time: 3-5 working days.