From the French for 'a thousand grains', the tiny beads of a milgrain accent can add complexity and detail to a Lab Sapphire design, as well as create a vintage or antique look. Sapphire is the birthstone of September, and one of the most popular gemstones on the jewelry scene today. The deep blue color of a sapphire ring is just right for an evening out. The birthstone of May, an emerald ring symbolizes the eternally returning spring. The velvety green color of emerald is a perfect match for spring and summer fashions.