Product Details. Genuine Gemstone. Base Metal: Stainless Steel. Coating: 14K Gold PVD Stainless Steel. Add this charm to your One Love Chain Necklace.. Comes with a little card that says:. Aquamarine - The March Birthstone. Enhance your creativity, sharpen your intuition, cultivate stronger empathy. Aquamarine is the stone of health, honesty, and loyalty. Let it serve as a reminder that honesty keeps the heart healthy and youthful.