8MM Mariner chain gram weight listed below.

18 inch- Approx. 46.2 grams in 14kt gold

20 inch- Approx. 51.3 grams in 14kt gold

22 inch- Approx. 56.5 grams in 14kt gold

24 inch- Approx. 61.6 grams in 14kt gold

26 inch- Approx. 66.7 grams in 14kt gold

30 inch- Approx. 77 grams in 14kt gold

All weights are an approximate number. Final chain weight may vary.