There isn't a difference concerning the markings S925 and 925; both designate that the item of jewelry is manufactured from sterling silver of the very best excellent. State hallmarks: Some nations have their own hallmarking programs. Pinpointing the nation hallmark can offer clues about the jeweler’s origin and probable sizing standards. https://slotonline74161.blazingblog.com/36979876/how-much-you-need-to-expect-you-ll-pay-for-a-good-jp88