This is a gorgeous Edwardian 18k yellow gold and platinum sapphire and diamond pin. The pin is set with a beautiful sapphire in the center accentuated by approximately 0.60ct of rose cut diamonds and approximately 0.25ct of small square cut sapphires. The approximate weight of the center sapphire is 0.30ct. The top of the pin is platinum and the back is 18k yellow gold. The length of this pin is 1 3/4 inches and the width is 1/2 an inch.