A Coro sterling silver marcasites Art Deco blue crystal brooch from the 1920s. This vintage 1-3/4 x 1-1/4" pin features marcasite or marquisites stones as well as a large light blue faceted crystal claw-set stone. It is marked CORO GERMANY on the back, it tests as sterling silver and it has a safety clasp. It weighs 18.0 grams and it is in excellent condition with no chips, cracks, dents, bends, corrosion, damage or repairs other than a few very tiny edge chips and abrasions and one small pit on the table of the stone (all very minor). All items are thoroughly and conservatively graded and all condition issues are noted; all items are vintage or antique and may have slight signs of gentle use. Expedited tracked and insured parcel shipping to the U.S. starts at $19 (other spots may vary, air is higher). Items paid with a credit card will be shipped to confirmed addresses only. We do ship internationally. All of our prices are in $US. PLEASE NOTE: We DO NOT accept PayPal.