Gold jewelry is prefixed with gold or G before its purity (K number). For example: gold 750, G 18K.

Only the ring with GxxK or Gxxx is gold jewelry. 18K, 14K, etc. All refer to purity. The gold content of 10K is 1/24× 100%.

When jewelry cannot be printed due to reasons such as being too fine or too small, it should be accompanied by a logo containing the contents of the imprint.

I hope it helps you.