J.Crew Gold-Plated Magma Necklace Nwt. Style Bg685. Retail $98.00. Item Bg685. Measurements: Measures 17.5" But Wears A Little Shorter Due To The Clasp. Material: Gold-Plated Recycled Brass Casting, Cubic Zirconia. Brand New And Never Worn. Smoke Free Home. Comes With The J.Crew Jewelry Bag. Gold Antique Necklaces, Chunky Gold Necklace Stack, Big Gold Jewelry, Gold Chunky Jewelry, Gold Chunky Necklace, Chunky Gold Necklace, Earthy Girl, Chunky Gold Jewelry, Statement Necklace Gold