My research tells me this is Pennino. It is nearly identical to another signed piece I found online and the style is exactly the same to many signed pieces. The quality is evident in this piece. It has a good heft to it and is in excellent shape! The pin is a little bent out of shape but this does not affect display.
The stones are gorgeous colors and everything seems tight on it. A really unique and large piece. There is no signature evident on the piece.It appears to be rhodium plated. The item "Colorful & unique vtg Pennino Vintage Flower Spray Rhinestone Brooch.
Excellent" is in sale since Tuesday, June 22, 2021. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Costume\Undated Costume Jewelry\Pins, Brooches". The seller is "njcarpetbagger" and is located in Moyock, North Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay.