4.5mm Diamond Cut Rope Chain Necklace Extender Real Solid 14K Yellow Gold Metal Condition Finish Avg. Weight        Width Length Clasp Retail Price Real 14K Yellow Gold (Stamped 14K)  Brand New Polished 4.90 grams (3 1/2"), weight depends on the length.. 4.50mm ~ 3/16" Selectable from the drop-down menu above, from 1" to 8" Lobster Claw Clasp $6869  Note: The picture shows a 3 1/2" extender..