Eternity Cubic Zirconia Silver Ring / Glow in the Dark / Sterling Silver 925 Ring /This unique Eternity ring made of cubic zirconia is made of high quality sterling silver 925. The round cubic zirconia ring is luminous on daylight and at night it glows in the dark! Width of the eternity ring is 4mm I use the highest quality glow in the dark material. Compared with regular sulfide photoluminescent pigments it have 10 times higher and longer afterglow luminance and afterglow time. You have to charge the ring by holding it under a