Royal Doulton Figurine Birthstone September : September’s birthstone is the deep blue sapphire. Derived from the Greek ‘sappheiros’ meaning blue stone, these precious gems were loved by the Ancient Persians and early Catholics who believed the sky was blue due to their reflection. Symbolic of purity, wisdom, virtue and good fortune and holiness for royals, sapphire in engagement rings is also associated with faithfulness and sincerity. Embellishing the gold necklace of this elegant petite figure a vibrant blue Swarovski®crystal represents a sapphire reflected in the deep blue floral detail of her gown.