Beautiful aged patina on this round sterling REC mexico inlaid abalone brooch or can be worn as a necklace pendant as well. See all photos, I don't clean any of my estate jewelry finds, but I will at your request .Just lmk after purchase if you want it polished. I think it's beautiful as is. 1.75" listing vintage and new jewelry daily, bundle and save, reasonable offers welcome. I sell in my closet and have tons of other brands similar to list such as Bridgerton, Julie Vos, St John, Zara, coro, vior,Donald stannard, lisner, renoir, Eisenberg, Christian dior,Givenchy, ciner, carolee's, hobe, Ben amun, Perez sanz, suarti, lois hill, Tiffany and co, juliana, hattie Carnegie, deliza and elster, miriam haskell, trifari, Vendome, Alexis bittar, Judith jack, kjl, vargas, Sherman, Nolan Miller, Elsa peretti sharra Pagano, Jill Fagin, Heidi daus, Jay feinberg, Germany, Japan, Hong Kong, Simon ju, Thelma deutsch, Erwin pearl, monet, Napier, Cynthia Daniel, Elizabeth Taylor, Anne klein, les Bernard, silpada, Sorrell, verdura, Joan rivers, pandora, monies, Gerard yosca, van cleef, regal rose, Jean Schlumberger, buccellati ,and more, so keep a look out I list daily! these and more to come!