This is an authentic IRENE NEUWIRTH 18K Yellow Gold Boulder Opal One of a Kind Love Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a heart cut boulder opal stone stationed on a link chain. Follow this item for alerts. Irene Neuwirth is a registered trademark of Irene Neuwirth. FASHIONPHILE is not affiliated with Irene Neuwirth.