crown 22Crown gold is a 22 karat (kt) gold alloy used in the crown coin introduced in England in 1526 (by Henry VIII). [1] In this alloy, the proportion of gold is 22 parts out of 24 (91.667% gold). CrownThe Crown Pro 22. Previous Next. Length 36 36.5 37 37.5 38 38.5. Grip. Colour White Black. 36 White