Rings › Aquamarine and shield diamond ring Image 1 of 3 Image 2 of 3 Image 3 of 3 Aquamarine and shield diamond ring £5,200.00 One Off piece3.50ct Santa Maria aquamarine, set with two shield cut diamonds 0.60cts. Ring is made from platinum. Get notified by email when this product is in stock. Quantity: Purchase Added! One Off piece3.50ct Santa Maria aquamarine, set with two shield cut diamonds 0.60cts. Ring is made from platinum.