This is a vintage gold-tone cloisonné enamel stick pin featuring a charming heart design in shades of green and blue.

The value of this vintage cloisonné enamel heart stick pin typically ranges between $7.00 and $15.00 on the secondary market.

Because it is an unsigned costume jewelry piece made from base metal (gold-tone) rather than solid gold, its value relies primarily on its aesthetic appeal to vintage collectors. Similar e commerce listings on platforms like Etsy and eBay price identical or highly similar mid-to-late 20th-century heart stick pins right around $10.00. 

The exact value within that range depends heavily on its condition:

• Top Value ($12 – $15): Achieved if the green and blue enamel sections are completely pristine with zero cracks, chips, or surface dullness, and the gold plating remains exceptionally bright.