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18k Gold Over Sterling Silver Necklace

sterling silver


Silver of a fineness of 92.5%.


Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925.


a silver alloy with no more than 7.5% copper


Silver of 921/2 percent purity

necklace


A necklace is an article of jewellery which is worn around the neck. Necklaces are frequently formed from a metal jewellery chain, often attached to a locket or pendant.


jewelry consisting of a cord or chain (often bearing gems) worn about the neck as an ornament (especially by women)


(chiefly in South Africa) Kill (someone) with a tire necklace


In combinatorics, a k-ary necklace of length n is an equivalence class of n-character strings over an alphabet of size k, taking all rotations as equivalent. It represents a structure with n circularly connected beads of up to k different colors.

gold


A yellow precious metal, the chemical element of atomic number 79, valued esp. for use in jewelry and decoration, and to guarantee the value of currencies


coins made of gold


An alloy of this


A deep lustrous yellow or yellow-brown color


amber: a deep yellow color; "an amber light illuminated the room"; "he admired the gold of her hair"


made from or covered with gold; "gold coins"; "the gold dome of the Capitol"; "the golden calf"; "gilded icons"

18k


The carat (abbreviation ct or kt) is a measure of the purity of gold alloys. In the United States and Canada, the spelling karat is used.