Sterling silver is an alloy of silver containing 92.5 % by weight of silver and 7.5 % by weight of other metals, usually copper.
What ist gold-filled ?
Gold-filled jewelry is jewelry composed of a solid layer of gold, mechanically bonded to a base of either sterling silver or some base metal. Most high quality gold-filled pieces have the same appearance as high carat gold. It is layed with 50 to 100 times more gold than than by regular gold plating.
Purple pearl necklace with silver brooch
Reference : BI-COL0281
Necklace : drawn on the pearls
Reference : BI-COL0278
Pearl necklace with magnifying effect in blue tones