The item appears to be a vintage or antique gold-tone stick pin featuring a small prong-set opal stone in a starburst or geometric floral setting.

Overview

• Type: Stick pin / lapel pin

• Design: A slender metal pin featuring a multi-pronged starburst or geometric flower head holding a small cabochon gemstone.

• Stone: Appears to be a small opal showing faint play-of-color.

• Material/Era: Common styles for these pieces date from the late Victorian to the early 20th century (Edwardian era), frequently crafted in gold or gold-filled/plated metals. Similar vintage pieces can be found on marketplaces like Etsy or Ruby Lane

Based on current retail listings and past sales records for similar antique jewelry items, the estimated value of this stick pin depends heavily on its metal composition:

Value Breakdown by Material

• If Gold-Plated / Gold-Filled / Base Metal: A vintage gold-tone fashion or costume stick pin with a smaller synthetic or lower-grade opal typically sells for $15 to $45.

• If 10K or 14K Solid Gold: If the metal shank and starburst head are tested and verified as genuine solid gold (common for the late Victorian/Edwardian eras), the value significantly increases. Market values for solid gold opal stick pins generally range from $100 to $270, depending on the weight of the gold and the fire/quality of the opal cabochon.