From the French for 'a thousand grains', the tiny beads of a milgrain accent can add complexity and detail to a Lab Emerald design, as well as create a vintage or antique look. 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. Brown gemstones are gaining in popularity and smoky quartz is an affordable choice. A smoky quartz ring goes well with autumn colors and evening wear.