The SEREN tungsten carbide ring features a graceful Celtic link pattern engraved over the entire outer surface of the band. The ring is flat shaped while the edges are polished, offering an elegant border to the Celtic knotting design. The ring is available in 6mm, 8mm, and 10mm widths to fit all hand sizes and shaped for comfort fit. The tungsten carbide material is harder than any traditional precious metal like gold and platinum for only a fraction of the price. Tungsten carbide is hypoallergenic and does not scratch easily, requiring no maintenance to keep its handsome luster. The SEREN ring is backed by our lifetime warranty policy.