September 2024 Birthstone Sapphire September 4, 2024 The birthstone for September is Sapphire. Earrings in 18K white gold with rhodium plating, cushion-cut blue unheated Burmese-origin Sapphires (5.48 ctw.), and round brilliant-cut Diamonds (0.66 ctw.), Rio Diamond Corp. Bracelet in 18K white gold with heated multicolor Sapphires (17.03 ctw.) and Diamonds (2.52 ctw), Samuel Sylvio Designs A heated 2.53 ct. purple trillion-cut Sri Lankan-origin Sapphire, Mayer & Watt Drop earrings in 18K two-tone gold with heated pink Sapphires (4.29 ctw.), yellow Sapphires (4.03 ctw.), green Sapphires (1.84 ctw.), blue Sapphires (1.52 ctw.), Asscher-cut Diamonds (0.80 ctw.), and round Diamonds (0.64 ctw.), Samuel Sylvio Designs Pendant necklace in 18K yellow gold with a 1.67 ct. Montana-origin Sapphire in a halo of natural-color Diamonds (0.60 ctw.), Diana Widman Design, LLC