The Set & Stones Madeline Necklace, featuring freshwater rice pearls, exudes classic sophistication and elegance. The Set & Stones Madeline Necklace, featuring freshwater rice pearls, exudes classic sophistication and elegance. Sarah Tullgren founded Set & Stones in 2016 when her love of jewelry was reignited by her grandmother's heirloom collection. From dainty designs to conversation-starters, Set & Stones uses high quality materials to create thoughtfully designed pieces that are meant to be worn and loved all day, every day.