rose gold-tone infinity knot promise ring .925 sterling silver band size 6 sac silver all our silver jewelry is crafted from .925 silver also commonly referred to as sterling silver. sterling silver is the standard for beautiful high-quality silver jewelry and can not be replicated by lower priced silver plated jewelry. it is 92.5% pure silver, mixed with alloys to add strength and durability to stand the test of time. we promise superior service which includes fast shipping, great communication, and amazon's refund policy.