Free Shipping to the United States & Canada

Please note that I am not acquiring additional inventory at this time. I do not provide appraisals or identification services, nor do I answer specific questions about your jewelry. I invite you to learn about vintage costume jewelry by visiting these pages.

For press inquiries or requests for a publication or speaking engagement, please use the Press & Speaking Inquiries form.

Sapphire, Diamanté & Gold Spiral 1950s Duette by Coro

Sapphire, Diamanté & Gold Spiral 1950s Duette by Coro


Additional information




Brooch: 3" x 7/8"; clip: 1 1/2" x 7/8"




c. 1950 (based on magazine ad)


"Coro Duette" (in script) and "PAT. NO. 1798867" on frame


May 1, 1950 ad in "Life" magazine

Gold-plated spirals are adorned with sapphire-glass baguettes and pavé centers on this 1950s Duette, Coro’s name for their double clip brooch. It is like a “two for one”! Wear it as a brooch or as separate dress clips. Their double-prong fastener works well with heavier fabrics, such as wool blazers and dresses. The all-diamanté version of this piece appeared in a 1950 Coro ad in Life with the slogan “the perfect jewel of a gift” and with the price of $10.50! (In 1950, the average U.S. family income was $81.48 a week.) You can see the utility patent for the brooch mechanism here, shown below Coro’s name.

In stock