This is a vintage gold-tone stick pin featuring a hexagonal head accented with a cluster of small pave rhinestones.

The resale value of this stick pin depends entirely on the materials it is made from, as visually identical styles exist both as costume jewelry and fine antique jewelry:

• Costume Jewelry ($5 to $20): If this is a base-metal, gold-plated, or gold-tone pin featuring glass rhinestones or paste gems (commonly made by vintage brands like Avon), it typically sells as costume jewelry on marketplaces like eBay and Etsy.

• Fine Antique Jewelry ($150 to $400+): If the metal is solid gold (such as 10K or 14K) and the stones are genuine antique diamonds, its value increases significantly based on gold weight and gemstone quality. Similar genuine Art Deco era solid gold diamond cluster stick pins sell in this premium range.