Gold-Plated Horn Necklace

Bought from a boutique that used to be in Pacific Center Mall in Vancouver. The boutique is gone now and I don't remember what it was called. The stamp on the pendant reads "TNJ." The gold-plating is a warm, rich gold(similar in color to Missoma's gold pieces), which may indicate 18-karat plating, but I don't know for sure. The horn itself is weighty and the piece feels high-quality. Length is 18 to 20 inches.