The selected region shows a vintage jumping dolphin brooch crafted from 925 sterling silver and studded with shimmering marcasite stones. These small, faceted pyrite gems give the sea creature a sparkling, textured look popular in mid-to-late 20th-century jewelry.
Item Details
Material: 925 Sterling Silver
Gemstones: Faceted Marcasite
Design: Leaping/Jumping Dolphin
Type: Pin / Brooch
The image shows the back of a vintage crescent-shaped or animal-themed brooch featuring a stamped "STERLING" hallmark and a traditional pin-stem mechanism with a barrel hinge and a safety-style rolling catch.
Brooch Details
Metal Mark: Stamped STERLING indicating it is made of solid sterling silver (92.5% pure silver).
Component Type: Vintage costume or estate jewelry pin/brooch.
Clasp Style: Overlapping barrel hinge with an older C-catch or rolling safety clasp setup common in mid-to-late 20th-century pieces
The estimated fair market value for this vintage sterling silver marcasite dolphin brooch is between $25 and $55.
Because these pieces were widely produced during the late 20th century, their secondary market value is driven primarily by condition, collector demand, and the specific manufacturer rather than purely by the scrap weight of the silver.
Value Breakdown by Condition & Origin
Standard / Unbranded ($25 – $40): An identical unbranded version of this exact jumping dolphin design regularly sells on platforms like Etsy and eBay in this price bracket.
Designer / Signed ($45 – $75+): If the back of your pin features a prominent designer hallmark—such as the double "JJ" triangles for Judith Jack or markings from Marsala—the value increases due to brand collectibility