The diatom Achnanthes undulorostrata, known for its free-form, undulating shape, celebrates individuality and the beauty of nonconformity—making it a perfect charm to symbolize uniqueness and personal expression. Chain not included. Complete your necklace with our chain selection. Measurements 21 mm long + 13mm with clasp Materials Recycled Sterling Silver. Details For thin chains the charm might be used without clasp, for larger chains a clasp is necessary. Made to order. Please allow up to two weeks to have your piece produced. Handmade in Switzerland. Slight variations may occur due to its artisanal process. Jewelry Care Silver tarnishes more rapidly due to exposure to air, dust or other elements, as well as leaving it unused. To keep it clean and shinny, a Care Kit is given with each piece. To learn more on hot to maintain your piece properly, please read our Care section.