CHART A

 

Comparison of Current U.S. and International Karat Gold Standards

 

Legal

Minimum

Grades in Commercial Use

Legal Tolerance for all

Karat Gold Alloys

Tolerances

for Gold

Country

Karat

Marking

8 K

.333

9 K

.375

10 K

.417

12 K

.500

14 K

.583

18 K

.750

20 K

.833

20+K

-

.000

.001

.002

.003

.004

.005

.010

Soldered

Articles

Austria

14K

 

 

 

 

X

X

 

X

 

 

 

 

 

X

 

.005

Belgium

 

 

 

 

 

X

X

 

 

 

 

 

X

 

 

 

.003

Canada

9 K

 

X

X

 

X

X

 

X

 

 

 

X

 

 

 

.007

Czechoslovakia

 

 

 

 

 

X

X

 

X

 

 

 

 

 

X

 

.005

Denmark

14 K

 

 

 

 

X

X

 

 

X

 

 

 

 

 

 

.000

Finland

 

 

 

 

 

X

X

 

 

X

 

 

 

 

 

 

.000

France

 

 

 

 

 

 

X

 

X

 

 

 

X

 

 

 

.003

Great Britain

9K

 

X

 

 

X

X

 

X

X

 

 

 

 

 

 

.000

Holland

 

 

 

 

 

X

X

 

 

 

 

 

X

 

 

 

.003

Hungary