Item #: 815928 This an authentic GUCCI 18K Yellow Gold Blue Topaz Running G Pendant Necklace. This lovely chain necklace with a blue topaz accent stone at closer and is crafted of 18 karat yellow gold, which features Gucci's iconic GG monogram pendant. Follow this item for alerts. Gucci is a registered trademark of Gucci. FASHIONPHILE is not affiliated with Gucci.