September birthstone, 65th wedding anniversary gift The regal sapphire is symbolising loyalty, nobility, sincerity, and integrity. Also incredibly difficult to scratch if you're accident prone. Of course, you don't have to be born in September to wear a sapphire, just look at the 12-carat sapphire engagement ring weighing down the Duchess of Cambridge Please note, natural gemstones may vary in colour. Rhodium-Plated Stainless Steel 6mm bezel set trillion cut Ethically sourced natural gemstone Charm measures 6x8mm Box chain length 16" (40.5cm) extends to 18" (45.5 cm)