18K Gold is a gold-purity grade used to compare karat-based gold content in jewelry and alloyed materials.
18K Gold belongs to the traditional karat system, which became established in jewelry trade as a practical way to describe relative gold purity.
Measurement system: Jewelry purity grading based on 24-part karat reference. SI equivalent: Reference purity factor used in the converter: 0.75.
18K Gold facts
- Unit name
- 18K Gold
- Symbol
- 18K
- Category
- Gold Karat
- Measurement system
- Jewelry purity grading based on 24-part karat reference
- SI equivalent
- Reference purity factor used in the converter: 0.75
- Common uses
- Jewelry, valuation, alloy comparison and gold-purity checks
Definition of the 18k gold
18K Gold is a gold-purity grade used to compare karat-based gold content in jewelry and alloyed materials.
Measurement system and SI relationship
Jewelry purity grading based on 24-part karat reference
SI equivalent: Reference purity factor used in the converter: 0.75
History of the 18k gold
18K Gold belongs to the traditional karat system, which became established in jewelry trade as a practical way to describe relative gold purity.
Where is the 18k gold used?
Jewelry, valuation, alloy comparison and gold-purity checks