May Birthstone with Wave Necklace The emerald is the birthstone for the month of May and symbolizes hope, growth and renewal. This vibrant green gemstone represents harmony, freshness and mental clarity. Product details: Material: stainless steel (silver or high-quality gold-plated) Chain length: 45 + 5 cm (adjustable) Stone: CZ zirconia (cubic zirconia) Properties: hypoallergenic, waterproof, durable and sustainable Packaging: Each necklace comes in a stylish jewelry box, perfect as a gift or for your own shine.