18K TIFFANY DIAMOND SEAHORSE PIN: 18K yellow gold seahorse pin contains one round brilliant cut diamond set in his tail. Weight: .05 Ct. Approx. Rated VS in clarity and F-G in color. And a 1.00 mm ruby as his eye. Bar pin closure. Length 1 1/8''. Weight: 5.6 grams. Signed: Tiffany.