What Does 750 On Jewelry Mean

Complete Explanation

The number 750 stamped on a piece of jewelry is a hallmark that denotes the fineness of the gold used. A fineness of 750 means the alloy contains 750 parts per thousand of pure gold, which is equivalent to 75 % gold by weight. In most countries this corresponds to 18‑karat gold, as 24 karat represents pure gold (100 %). The remaining 25 % of the alloy typically consists of metals such as copper, silver, zinc, or nickel, which provide hardness and affect colour. The 750 hallmark is part of an international system of gold marking used in Europe, Australia, South Africa, and many other regions, and is often accompanied by additional marks indicating the manufacturer, assay office, or country of origin.

• Gold Purity:
  750 signifies 75 % pure gold, equivalent to 18 karat.
• Alloy Composition:
  The remaining 25 % is made up of other metals that improve durability and colour.
• International Standards:
  Many countries adopt the 750 fineness marking as the standard for 18 karat gold.
• Legal Requirements:
  Hallmarking, including the 750 stamp, is often mandated by law to protect consumers.
• Identification:
  The stamp is usually found on a discreet part of the piece and may be accompanied by additional marks such as the maker’s logo or assay office symbol.

Common Misconceptions