This is a great 18K yellow gold Swordfish brooch with a blue Sapphire eye. It is made by Krementz: A maker with a long history of US jewelry making from Newark, NJ.
The brooch is 2" sword to tail by 3/4" at the fin. It has a secure clasp and excellent estate condition with no dings or repairs. It weighs 5.9 grams and comes from a Long Island, NY estate.
Always best to have a signed piece to help your jewels retain and enhance their value.
Estate 18K Krementz Swordfish Brooch