GiGiGirl Sterling Silver Birthstone Solitaire Necklace - Color Options. Gift this delicate necklace to any loved one on their birthday, featuring a sparkling round brilliant cut solitaire birthstone nestled in a four-prong setting in the center. The dainty cable chain allows this vibrant stone to sit centered, all beautifully crafted in a sterling silver / 14k gold plated finish for added shine. A lobster clasp and adjustable extension chain keep this necklace in place, adding versatility that is perfect for layering with other chains and pendants of your choice for a super-chic style. Chain measures 16+2"