These chains are made in Italy and connect with a lobster claw clasp (Note: the 1.5mm size connects with a spring ring clasp). 1.5MM: 7"=1.5 grams, 10"=2 grams, 16"=2.5 grams, 18"=2.8 grams, 20"=3.5 grams, 24"=4 grams, 30=5 grams. 1.9MM: 7"=2 grams 16"=4 grams 18"=4.3 grams, 20"=5 grams, 24"=6 grams, 30"=7 grams.
2.5MM: 16"=8 grams, 18"=9 grams, 20"=10 grams, 22"=11 grams, 24"=12 grams, 30"=14 grams. 3MM: 16"=9.5 grams, 18"=11.5 grams, 20"=12.5 grams, 22"=13.5 grams, 24"=14.5 grams, 30"=18.5 grams.
4MM: 18"=15 grams, 20"=17 grams, 22"=19 grams, 24"=21 grams, 30=26 grams. 5MM: 7"=9.4 grams, 8"=10.4 grams, 16"= 20.8 grams, 18"=23.5 grams, 20"=25.4 grams, 22"=30.4 grams, 24"=34.6 grams, 26"=35 grams, 28"=36 grams, 30"=39.1 grams, 36=47.3 grams. 6MM: 16"=29 grams, 18"=32 grams, 20"=36 grams, 24"=44.8 grams, 24=55.8 grams. Renegade Jewely has been in business since 1999 with an outstanding record of quality and service. All of our silver and gold jewelry will fire assay in excess of industry standards for purity. All of our gemstones are guaranteed genuine unless otherwise noted as lab created. Thank you so much for your business!