Warranty John Hardy warranty policy covers basic repairs and manufacturing defects for one year. A sales receipt must be provided from a John Hardy authorized retailer for this warranty to be valid. ONE YEAR MANUFACTURING DEFECT Jewelry returned within 30 days of purchase for a manufacturing defect, will either be replaced by John Hardy or an authorized John Hardy retailer. After 30 days from the purchase date, the jewelry will be repaired. This warranty is void if the jewelry has been purchased by an unauthorized retailer. This warranty is void if the jewelry has been damaged by accident, negligence, unauthorized service or other factors not due to defects in material or workmanship. All jewelry sent in under warranty must include a sales receipt.