An unexpected side-effect of this striking jewelry is the sudden desire to live by candlelight—all the better to amplify its bling and brilliance. Delicate knotwork in sterling silver evokes ancient Celtic art, but it’s the halo of diminutive, clear crystals and the flawless sapphire blue center crystal that make this necklace so irresistible. Handcrafted in a family studio in Dublin, Ireland.