JewelStop 14k Yellow Gold 1 mm Extendable & Adjustable Spiga Wheat Chain, Lobster Claw - 22", 2.8gr. JewelStop wheat chain necklace that has got a stunning design. The wheat chain necklace is crafted in 14k gold stamped and marked. The gold chain necklace is yellow gold in color and has a lustrous shine. The wheat chain necklace has an unlimited 1 year warranty and 30 days money back guarantee. The product dimensions are: 22" long and 1mm in width. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.