Item Description: RARE Tiffany & Co SEA URCHIN Brooch. This is the EXTRA EXTRA LARGE Version and rare.Usually these are small and hard to find. I always say if you are NOT a hugger this is your BROOCH as the spikes are SHARP : Cool piece and HEAVY 18k Yellow gold. I mean almost 2 ounces in solid 18k Yellow gold. Metal: 18 KT Yellow Gold. Powered by SixBit's eCommerce Solution. The item "HEAVY Signed Tiffany & Co SEA URCHIN 18k Yellow Gold Brooch Pin 43g HEAVY XXL" is in sale since Wednesday, February 28, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Pins & Brooches\Other Fine Pins & Brooches". The seller is "oldtreasures333" and is located in American Fork, Utah. This item can be shipped worldwide.