Trifari Crown Brooch with Blue Square Rhinestone

A recent purchase at a local estate sale, this vintage brooch is marked Trifari (with a crown over the "T"). It's very similar to one I already own, so I probably will gift this one or sell it in my Etsy shop. Is there a Trifari aficionado out there who can tell me if it has a name? Or number? Year of manufacture? It's just under 2" in diameter and very heavy for its size. Thank you.