Reg Birthstar September Gold
Regular (4mm) Blue Sapphire Crystal September Birthstone, 24kt Gold Plated over 316L Surgical Stainless Steel. September's birthstone is a dark blue sapphire crystal. This 3mm simulated sapphire crystal is framed in a gold claw setting for a total 4mm diameter, and is finished with a thick post.
Internal Reference:
HR109Y