Our aquamarine birthstone necklace is perfect for gift giving for someone special with a March birthday. Handmade in sterling silver with natural aquamarine gemstones mined in Brazil with an light blue-green sparkling color. Simple and sweet worn as a choker or layered with your favorites for a unique look. The center stone is a 6-7mm heart briolette surround by tiny 3mm rondelles wrapped onto our dainty cable chain that closes with a spring clasp. About Aquamarine: Aquamarine is a sea-blue to green colored stone in the beryl group of gemstones and the birthstone for March. The name comes from the Latin phrase meaning “seawater.” There are many sources of aquamarine around the world, with Brazil being the leading supplier. Aquamarine is often an untreated natural gemstone, but some stones are heat treated to enhance the coloring. Heating the stone at very low temperatures will reduce the green and yellow tones. Materials: Aquamarine 6-7mm heart briolettes, 3mm rondelles All metal components are 925 sterling silver If you have any questions just click "message seller" on our homepage. Thank you for visiting our jewelry shop, Linda and Joe .