1 20 12k Gf - Global Network
The fraction before the karat grade refers to how much gold is actually in the item.
Jul 24, 2026
The fraction before the karat grade refers to how much gold is actually in the item. 1/20 10k gf means 1/20th or 5% of the weight is 10 karat gold. If you see a marking of 12k on an item it is.