22K

What is a 22K Gold?

22K Gold contains 22 parts pure gold out of 24, or 91.7% gold by weight; the rest is alloy metals such as silver, copper or zinc that make it harder and change its color.

22K Gold contains 22 parts pure gold out of 24, or 91.7% gold by weight; the rest is alloy metals such as silver, copper or zinc that make it harder and change its color.

The karat system divides gold into 24 parts. 22K Gold is usually stamped 916, the purity in parts per thousand, which is the mark buyers and assay offices check.

Measurement system: Jewelry purity grading based on 24-part karat reference. SI equivalent: Reference purity factor used in the converter: 0.916666666667.

22K Gold facts

Unit name
22K Gold
Symbol
22K
Category
Gold Karat
Measurement system
Jewelry purity grading based on 24-part karat reference
SI equivalent
Reference purity factor used in the converter: 0.916666666667
Common uses
Jewelry, valuation, alloy comparison and gold-purity checks

Definition of the 22k gold

22K Gold contains 22 parts pure gold out of 24, or 91.7% gold by weight; the rest is alloy metals such as silver, copper or zinc that make it harder and change its color.

Measurement system and SI relationship

Jewelry purity grading based on 24-part karat reference

SI equivalent: Reference purity factor used in the converter: 0.916666666667

History of the 22k gold

The karat system divides gold into 24 parts. 22K Gold is usually stamped 916, the purity in parts per thousand, which is the mark buyers and assay offices check.

Where is the 22k gold used?

Jewelry, valuation, alloy comparison and gold-purity checks

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: Guide for the Use of the International System of Units

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