Attributes:10K Yellow goldDiamond-cutLobsterSolidSpecial lengths availAppx Weight in Grams by Width/Length: (each item will vary slightly)1.5 mm width: 7in=1.44, 8in=1.7, 9in=1.86, 16in=3.18, 18in=3.54, 20in=3.89, 22in=4.28, 24in=4.48, 26in=4.89, 28in=5.26, 30in=5.491.75 mm width: 7in=1.9, 8in=2.1, 9in=2.38, 16in=3.96, 18in=4.53, 20in=4.95, 22in=5.44, 24in=5.92, 26in=6.47, 28in=6.93, 30in=7.292.25 mm width: 7in=2.33, 8in=2.77, 9in=3.09, 16in=5.37, 18in=6, 20in=6.69, 22in=7.38, 24in=8.03, 26in=8.67, 28in=9.45, 30in=9.972.5 mm width: 7in=3.06, 8in=3.5, 9in=3.89, 16in=6.77, 18in=7.65, 20in=8.53, 22in=9.33, 24in=10.18, 26in=10.57, 28in=11.38, 30in=12.82.75 mm width: 7in=4.24, 8in=4.89, 9in=5.56, 16in=9.83, 18in=10.86, 20in=12.26, 22in=13.53, 24in=14.69, 26in=16.14, 28in=16.79, 30in=18.443.2 mm width: 7in=4.85, 8in=5.6, 9in=6.3, 16in=11.08, 18in=12.67, 20in=13.99, 22in=15.26, 24in=16.51, 26in=18.27, 28in=20.05, 30in=20.043.5 mm width: 7in=6.06, 8in=7.02, 9in=7.93, 16in=14.25, 18in=16.16, 20in=17.89, 22in=19.75, 24in=21.54, 26in=23.41, 28in=25.25, 30in=26.834 mm width: 7in=7.69, 8in=8.74, 9in=10.23, 16in=18.22, 18in=20.64, 20in=23.19, 22in=25.44, 24in=27.95, 26in=30.49, 28in=31.48, 30in=33.35 mm width: 7in=11.08, 8in=12.6, 9in=14.33, 18in=29.54, 20in=32.88, 22in=36.07, 24in=39.56, 26in=42.85, 28in=45.96, 30in=49.056 mm width: 7in=14.87, 8in=17.73, 9in=20.05, 20in=45.33, 22in=49.74, 24in=54.23, 26in=60.06, 28in=63.83, 30in=68.29Other Specs:Clasp / Connector: LobsterFinish: PolishedTexture: Diamond-cutChain Type: RopeMaterial: GoldPurity: 10K